Add Knowledge Base section to README

Author: schulzchristian

README.md

@@ -55,6 +55,10 @@ In practice, even with `--dangerously-skip-permissions`, the agent may eventuall
 
 This orchestration ensures the AE cycle runs truly unattended, even across context window boundaries or when the executor would otherwise break out of the loop.
 
+## Knowledge Base
+
+The project includes a community-contributed [knowledge base](knowledge-base/) of optimization techniques, experiment results, and lessons learned from AAE sessions. Browse `knowledge-base/INDEX.md` for an overview, or contribute your own findings (see `knowledge-base/CONTRIBUTING.md`).
+
 ## Author
 
 Christian Schulz, [Algorithm Engineering Group](https://ae.ifi.uni-heidelberg.de/), Heidelberg University