Add local devnet guide #2659

Job	Run time
Detect code changes	5s
Determine Image Tag	3s
lint / yamllint	9s
test / Run Integration Tests	2m 1s
proto / buf-check	6s
lint / hadolint	9s
test / Build All ev-node Binaries	1m 42s
test / Run Unit Tests	3m 29s
lint / goreleaser-check	10s
test / Go Mod Tidy Check	1m 3s
lint / markdown-lint	15s
lint / golangci-lint	14s
docker / Build ev-node-evm	18m 7s
docker / Build ev-node-grpc	17m 48s
docker / Build ev-node-testapp	18m 9s
test / Run EVM Execution Tests	2m 12s
test / Run E2E System Tests	14m 51s
test / Combine and Upload Coverage	11s
docker-tests	0s
	1h 20m 44s

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