docs: add release v0.1.0 to CHANGELOG.md (#312)

PRs list generated with:
```
gh pr list -s merged -L 200 --json number,title,author -t '{{range .}}- {{.title}} ([#{{.number}}](https://github.com/celestiaorg/optimint/pull/{{.number}})) [@{{.author.login}}](https://github.com/{{.author.login}}/)
{{end}}'
```
and later manually split into sections and cleaned up a bit.

Author: tzdybal

CHANGELOG-PENDING.md

@@ -2,42 +2,10 @@
 
 ## vX.Y.Z
 
-Month, DD, YYYY
-
 ### BREAKING CHANGES
 
-- [go package] (Link to PR) Description @username
-
 ### FEATURES
 
-- [indexer] [Implement block and transaction indexing, enable TxSearch RPC endpoint #202](https://github.com/celestiaorg/optimint/pull/202) [@mattdf](https://github.com/mattdf)
-- [rpc] [Tendermint URI RPC #224](https://github.com/celestiaorg/optimint/pull/224) [@tzdybal](https://github.com/tzdybal/)
-- [rpc] [Subscription methods #252](https://github.com/celestiaorg/optimint/pull/252) [@tzdybal](https://github.com/tzdybal/)
-
 ### IMPROVEMENTS
 
-- [ci] [Add more linters #219](https://github.com/celestiaorg/optimint/pull/219) [@tzdybal](https://github.com/tzdybal/)
-- [deps] [Update dependencies: grpc, cors, cobra, viper, tm-db #245](https://github.com/celestiaorg/optimint/pull/245) [@tzdybal](https://github.com/tzdybal/)
-- [rpc] [Implement NumUnconfirmedTxs #255](https://github.com/celestiaorg/optimint/pull/255) [@tzdybal](https://github.com/tzdybal/)
-- [rpc] [Implement BlockByHash #256](https://github.com/celestiaorg/optimint/pull/256) [@mauriceLC92](https://github.com/mauriceLC92)
-- [rpc] [Implement BlockResults #263](https://github.com/celestiaorg/optimint/pull/263) [@tzdybal](https://github.com/tzdybal/)
-- [store,indexer] [Replace tm-db dependency with store package #268](https://github.com/celestiaorg/optimint/pull/268) [@tzdybal](https://github.com/tzdybal/)
-- [rpc] [Implement ConsensusState/DumpConsensusState #273](https://github.com/celestiaorg/optimint/pull/273) [@tzdybal](https://github.com/tzdybal/)
-- [rpc] [Implement Tx Method #272](https://github.com/celestiaorg/optimint/pull/272) [@mauriceLC92](https://github.com/mauriceLC92)
-- [rpc] [Implement Commit and BlockSearch method #258](https://github.com/celestiaorg/optimint/pull/258) [@raneet10](https://github.com/Raneet10/)
-- [rpc] [Remove extra variable #280](https://github.com/celestiaorg/optimint/pull/280) [@raneet10](https://github.com/Raneet10/)
-- [rpc] [Implement BlockChainInfo RPC method #282](https://github.com/celestiaorg/optimint/pull/282) [@raneet10](https://github.com/Raneet10/)
-- [state,block,store,rpc] [Minimalistic validator set handling](https://github.com/celestiaorg/optimint/pull/286) [@tzdybal](https://github.com/tzdybal/)
-- [rpc] [Implement ConsensusParams #292](https://github.com/celestiaorg/optimint/pull/292) [@tzdybal](https://github.com/tzdybal/)
-- [rpc] [Implement GenesisChunked method #287](https://github.com/celestiaorg/optimint/pull/287) [@mauriceLC92](https://github.com/mauriceLC92)
-
 ### BUG FIXES
-
-- [store] [Use KeyCopy instead of Key in BadgerIterator #274](https://github.com/celestiaorg/optimint/pull/274) [@tzdybal](https://github.com/tzdybal/)
-- [state,block] [Do save ABCI responses for blocks #285](https://github.com/celestiaorg/optimint/pull/285) [@tzdybal](https://github.com/tzdybal/)
-- [conv/abci] [Map LastBlockID.Hash to LastHeaderHash in conversion #303](https://github.com/celestiaorg/optimint/pull/303) [@tzdybal](https://github.com/tzdybal/)
-- [chore] [Fix multiple bugs for Ethermint #305](https://github.com/celestiaorg/optimint/pull/305) [@tzdybal](https://github.com/tzdybal/)
-- [lint] [Fix linter on main #308](https://github.com/celestiaorg/optimint/pull/308) [@tzdybal](https://github.com/tzdybal/)
-- [rpc/client] [Make TestValidatorSetHandling stable](https://github.com/celestiaorg/optimint/pull/313) [@tzdybal](https://github.com/tzdybal/)
-
-- [go package] (Link to PR) Description @username

CHANGELOG.md

@@ -1,21 +1,96 @@
-# Unreleased Changes
+# CHANGELOG
 
-## vX.Y.Z
+## v0.1.0 | 07.03.2022
 
-Month, DD, YYYY
-
-### BREAKING CHANGES
-
-- [go package] (Link to PR) Description @username
+This is the first Optimint release.
+Optimint supports all ABCI methods and all Tendermint RPCs.
 
 ### FEATURES
-
-- [go package] (Link to PR) Description @username
+- Minimal implementation of ConsensusParams method  ([#292](https://github.com/celestiaorg/optimint/pull/292)) [@tzdybal](https://github.com/tzdybal/)
+- Implement GenesisChunked method  ([#287](https://github.com/celestiaorg/optimint/pull/287)) [@mauriceLC92](https://github.com/mauriceLC92/)
+- Minimalistic validator set handling  ([#286](https://github.com/celestiaorg/optimint/pull/286)) [@tzdybal](https://github.com/tzdybal/)
+- Implement BlockChainInfo RPC method  ([#282](https://github.com/celestiaorg/optimint/pull/282)) [@Raneet10](https://github.com/Raneet10/)
+- ConsensusState/DumpConsensusState implementation  ([#273](https://github.com/celestiaorg/optimint/pull/273)) [@tzdybal](https://github.com/tzdybal/)
+- Tx Method implementation  ([#272](https://github.com/celestiaorg/optimint/pull/272)) [@mauriceLC92](https://github.com/mauriceLC92/)
+- Implement BlockResults RPC function  ([#263](https://github.com/celestiaorg/optimint/pull/263)) [@tzdybal](https://github.com/tzdybal/)
+- Implement Commit and BlockSearch  ([#258](https://github.com/celestiaorg/optimint/pull/258)) [@Raneet10](https://github.com/Raneet10/)
+- BlockByHash function implementation  ([#256](https://github.com/celestiaorg/optimint/pull/256)) [@mauriceLC92](https://github.com/mauriceLC92/)
+- Implement NumUnconfirmedTxs RPC call  ([#255](https://github.com/celestiaorg/optimint/pull/255)) [@tzdybal](https://github.com/tzdybal/)
+- RPC: subscription methods  ([#252](https://github.com/celestiaorg/optimint/pull/252)) [@tzdybal](https://github.com/tzdybal/)
+- Tendermint URI RPC  ([#224](https://github.com/celestiaorg/optimint/pull/224)) [@tzdybal](https://github.com/tzdybal/)
+- Create CHANGELOG.md, CHANGELOG-PENDING.md, and corresponding GH action  ([#203](https://github.com/celestiaorg/optimint/pull/203)) [@jbowen93](https://github.com/jbowen93/)
+- Block and Tx indexing backend for optimint  ([#202](https://github.com/celestiaorg/optimint/pull/202)) [@mattdf](https://github.com/mattdf/)
+- Tx Events  ([#193](https://github.com/celestiaorg/optimint/pull/193)) [@tzdybal](https://github.com/tzdybal/)
+- Block RPC  ([#187](https://github.com/celestiaorg/optimint/pull/187)) [@tzdybal](https://github.com/tzdybal/)
+- Set ChainID in ABCI Header  ([#185](https://github.com/celestiaorg/optimint/pull/185)) [@tzdybal](https://github.com/tzdybal/)
+- Expose Tendermint HTTP RPC  ([#183](https://github.com/celestiaorg/optimint/pull/183)) [@tzdybal](https://github.com/tzdybal/)
+- Create CODEOWNERS  ([#179](https://github.com/celestiaorg/optimint/pull/179)) [@tzdybal](https://github.com/tzdybal/)
+- Add InitChain ABCI logic  ([#159](https://github.com/celestiaorg/optimint/pull/159)) [@tzdybal](https://github.com/tzdybal/)
+- gRPC DALC and mock server  ([#158](https://github.com/celestiaorg/optimint/pull/158)) [@tzdybal](https://github.com/tzdybal/)
+- Add batch for KVstore  ([#149](https://github.com/celestiaorg/optimint/pull/149)) [@Raneet10](https://github.com/Raneet10/)
+- Add new ErrKeyNotFound  ([#148](https://github.com/celestiaorg/optimint/pull/148)) [@pmareke](https://github.com/pmareke/)
+- Change mock implementation to use store.KVStore instead of maps  ([#146](https://github.com/celestiaorg/optimint/pull/146)) [@jbowen93](https://github.com/jbowen93/)
+- Block sync  ([#139](https://github.com/celestiaorg/optimint/pull/139)) [@tzdybal](https://github.com/tzdybal/)
+- ADR: header commits to shares  ([#138](https://github.com/celestiaorg/optimint/pull/138)) [@adlerjohn](https://github.com/adlerjohn/)
+- On-disk storage  ([#122](https://github.com/celestiaorg/optimint/pull/122)) [@tzdybal](https://github.com/tzdybal/)
+- Block Propagation  ([#92](https://github.com/celestiaorg/optimint/pull/92)) [@tzdybal](https://github.com/tzdybal/)
+- Extend DA layer client interface  ([#83](https://github.com/celestiaorg/optimint/pull/83)) [@tzdybal](https://github.com/tzdybal/)
+- Transaction aggregation  ([#82](https://github.com/celestiaorg/optimint/pull/82)) [@tzdybal](https://github.com/tzdybal/)
+- lazyledger DA client implementation  ([#81](https://github.com/celestiaorg/optimint/pull/81)) [@tzdybal](https://github.com/tzdybal/)
+- Serialization and Hashing  ([#79](https://github.com/celestiaorg/optimint/pull/79)) [@tzdybal](https://github.com/tzdybal/)
+- Protobuf definition for Optimint types  ([#73](https://github.com/celestiaorg/optimint/pull/73)) [@tzdybal](https://github.com/tzdybal/)
+- State and block execution  ([#58](https://github.com/celestiaorg/optimint/pull/58)) [@tzdybal](https://github.com/tzdybal/)
+- Data Availability Submission API  ([#71](https://github.com/celestiaorg/optimint/pull/71)) [@tzdybal](https://github.com/tzdybal/)
+- ADR: serialization  ([#59](https://github.com/celestiaorg/optimint/pull/59)) [@tzdybal](https://github.com/tzdybal/)
+- Protobuf definition for Optimint types  ([#57](https://github.com/celestiaorg/optimint/pull/57)) [@tzdybal](https://github.com/tzdybal/)
+- Block store  ([#42](https://github.com/celestiaorg/optimint/pull/42)) [@tzdybal](https://github.com/tzdybal/)
+- Add core types  ([#41](https://github.com/celestiaorg/optimint/pull/41)) [@liamsi](https://github.com/liamsi/)
+- Integrate Tendermint mempool  ([#34](https://github.com/celestiaorg/optimint/pull/34)) [@tzdybal](https://github.com/tzdybal/)
+- Describe peer discovery in ADR  ([#33](https://github.com/celestiaorg/optimint/pull/33)) [@tzdybal](https://github.com/tzdybal/)
+- Transaction gossiping  ([#29](https://github.com/celestiaorg/optimint/pull/29)) [@tzdybal](https://github.com/tzdybal/)
+- Drop-in replacement of Tendermint Node  ([#13](https://github.com/celestiaorg/optimint/pull/13)) [@tzdybal](https://github.com/tzdybal/)
+- Initial project setup  ([#12](https://github.com/celestiaorg/optimint/pull/12)) [@tzdybal](https://github.com/tzdybal/)
+- Add design doc to readme  ([#9](https://github.com/celestiaorg/optimint/pull/9)) [@musalbas](https://github.com/musalbas/)
 
 ### IMPROVEMENTS
-
-- [go package] (Link to PR) Description @username
+- Remove extra variable  ([#280](https://github.com/celestiaorg/optimint/pull/280)) [@Raneet10](https://github.com/Raneet10/)
+- Replace tm-db dependency with store package  ([#268](https://github.com/celestiaorg/optimint/pull/268)) [@tzdybal](https://github.com/tzdybal/)
+- Use enum instead of strings for DB type  ([#259](https://github.com/celestiaorg/optimint/pull/259)) [@adlerjohn](https://github.com/adlerjohn/)
+- docs: unify entries format in CHANGELOG-PENDING.md  ([#221](https://github.com/celestiaorg/optimint/pull/221)) [@tzdybal](https://github.com/tzdybal/)
+- ci: add more linters  ([#219](https://github.com/celestiaorg/optimint/pull/219)) [@tzdybal](https://github.com/tzdybal/)
+- time.Sleep removal from tests  ([#178](https://github.com/celestiaorg/optimint/pull/178)) [@ntsanov](https://github.com/ntsanov/)
+- Configuration  ([#170](https://github.com/celestiaorg/optimint/pull/170)) [@tzdybal](https://github.com/tzdybal/)
+- Remove Handler from Gossiper  ([#167](https://github.com/celestiaorg/optimint/pull/167)) [@Raneet10](https://github.com/Raneet10/)
+- Re-apply changes from #144  ([#154](https://github.com/celestiaorg/optimint/pull/154)) [@tzdybal](https://github.com/tzdybal/)
+- add dependabot.yml  ([#105](https://github.com/celestiaorg/optimint/pull/105)) [@liamsi](https://github.com/liamsi/)
+- Add valid link to Twitter badge  ([#103](https://github.com/celestiaorg/optimint/pull/103)) [@tzdybal](https://github.com/tzdybal/)
+- Add go report card and Twitter badge to README.md  ([#102](https://github.com/celestiaorg/optimint/pull/102)) [@tzdybal](https://github.com/tzdybal/)
+- Add validator to pubsub and stop gossiping transactions twice  ([#97](https://github.com/celestiaorg/optimint/pull/97)) [@evan-forbes](https://github.com/evan-forbes/)
+- Extract gossiping logic into a type  ([#95](https://github.com/celestiaorg/optimint/pull/95)) [@tzdybal](https://github.com/tzdybal/)
+- Rebrand: rename lazyledger to celestia  ([#91](https://github.com/celestiaorg/optimint/pull/91)) [@tzdybal](https://github.com/tzdybal/)
+- Updated Store interface  ([#78](https://github.com/celestiaorg/optimint/pull/78)) [@tzdybal](https://github.com/tzdybal/)
+- Submit signed transactions instead of messages  ([#76](https://github.com/celestiaorg/optimint/pull/76)) [@evan-forbes](https://github.com/evan-forbes/)
+- Enable test workflow on all PRs  ([#72](https://github.com/celestiaorg/optimint/pull/72)) [@tzdybal](https://github.com/tzdybal/)
+- Enable golangci-lint GitHub action  ([#43](https://github.com/celestiaorg/optimint/pull/43)) [@tzdybal](https://github.com/tzdybal/)
+- Bring back address conversion method  ([#40](https://github.com/celestiaorg/optimint/pull/40)) [@tzdybal](https://github.com/tzdybal/)
+- Get rid of reflect in mempool code  ([#39](https://github.com/celestiaorg/optimint/pull/39)) [@tzdybal](https://github.com/tzdybal/)
+- Update lazy ADR 001  ([#31](https://github.com/celestiaorg/optimint/pull/31)) [@tzdybal](https://github.com/tzdybal/)
+- Refactoring of P2P unit tests  ([#30](https://github.com/celestiaorg/optimint/pull/30)) [@tzdybal](https://github.com/tzdybal/)
+- Use addresses in multiaddr format.  ([#19](https://github.com/celestiaorg/optimint/pull/19)) [@tzdybal](https://github.com/tzdybal/)
 
 ### BUG FIXES
-
-- [go package] (Link to PR) Description @username
+- fix: make `TestValidatorSetHandling` stable ([#313](https://github.com/celestiaorg/optimint/pull/313)) [@tzdybal](https://github.com/tzdybal/)
+- Fix linter on `main`  ([#308](https://github.com/celestiaorg/optimint/pull/308)) [@tzdybal](https://github.com/tzdybal/)
+- Fix multiple bugs for Ethermint  ([#305](https://github.com/celestiaorg/optimint/pull/305)) [@tzdybal](https://github.com/tzdybal/)
+- fix: map LastBlockID.Hash to LastHeaderHash in conversion  ([#303](https://github.com/celestiaorg/optimint/pull/303)) [@tzdybal](https://github.com/tzdybal/)
+- fix: do save ABCI responses for blocks  ([#285](https://github.com/celestiaorg/optimint/pull/285)) [@tzdybal](https://github.com/tzdybal/)
+- fix: use KeyCopy instead of Key in BadgerIterator  ([#274](https://github.com/celestiaorg/optimint/pull/274)) [@tzdybal](https://github.com/tzdybal/)
+- Fix missed breaks in selects  ([#265](https://github.com/celestiaorg/optimint/pull/265)) [@adlerjohn](https://github.com/adlerjohn/)
+- Fix ineffective breaks  ([#262](https://github.com/celestiaorg/optimint/pull/262)) [@adlerjohn](https://github.com/adlerjohn/)
+- Break out of loop instead of doing nothing  ([#260](https://github.com/celestiaorg/optimint/pull/260)) [@adlerjohn](https://github.com/adlerjohn/)
+- fix: gofmt block/manager.go and remove typo  ([#222](https://github.com/celestiaorg/optimint/pull/222)) [@tzdybal](https://github.com/tzdybal/)
+- Actually fix a ChainID issue  ([#186](https://github.com/celestiaorg/optimint/pull/186)) [@tzdybal](https://github.com/tzdybal/)
+- Fix typos in node/node.go  ([#86](https://github.com/celestiaorg/optimint/pull/86)) [@tzdybal](https://github.com/tzdybal/)
+- Fixing linter errors  ([#55](https://github.com/celestiaorg/optimint/pull/55)) [@tzdybal](https://github.com/tzdybal/)
+- Add peer discovery  ([#17](https://github.com/celestiaorg/optimint/pull/17)) [@tzdybal](https://github.com/tzdybal/)
+- P2P bootstrapping  ([#14](https://github.com/celestiaorg/optimint/pull/14)) [@tzdybal](https://github.com/tzdybal/)