Add feedback link to forum on install-eclipse.mdx (#836)

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Author: jdorfman

docs/cody/clients/install-eclipse.mdx

@@ -74,3 +74,7 @@ When you have both a repository and files @-mentioned, Cody will search the repo
 ## Prompts
 
 Cody offers a variety of [pre-built prompts](/cody/capabilities/commands) to help you get the most out of your chat experience. You can access these prompts from the chat input field.
+
+## Feedback
+
+While Cody for Eclipse is currently in the experimental stage, we are open to feedback [in our forum](https://community.sourcegraph.com/c/cody/eclipse/13).