Add HTML documentation link to README and fix the ScratchUsage entry

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: ufechner7

README.md

@@ -171,6 +171,7 @@ re-plots that log without re-simulating.
 
 ## Documentation
 
+- [HTML documentation](https://opensourceawe.github.io/SimpleKiteControllers.jl/dev)
 - [simulation results and video in notebook format](https://opensourceawe.github.io/SimulationResults/)
 - [docs/control_algorithm.md](docs/control_algorithm.md) — how the controller works, from the
   optimal trajectory through path following and the steering set point to the reel-out speed,
@@ -180,8 +181,9 @@ re-plots that log without re-simulating.
 - [docs/reelout_state_machine.md](docs/reelout_state_machine.md) — the flight phases and winch
   states of `examples/simple_reelout.jl`, with the transition conditions
 - [docs/fig8_tuning_log.md](docs/fig8_tuning_log.md) — the dated record of the parameter
-  experiments behind the shipped tuning, including which levers turned out to be dead ends and
-  [docs/ScratchUsage.md](docs/ScratchUsage.md) — startup cost and where the generated model and settling caches land
+  experiments behind the shipped tuning, including which levers turned out to be dead ends
+- [docs/ScratchUsage.md](docs/ScratchUsage.md) — startup cost and where the generated model and
+  settling caches land
 - [docs/TrajectoryOptimization.md](docs/TrajectoryOptimization.md) — notes on the trajectory
   optimization test cases