docs(amazonq): Add trace server instructions

Author: jpinkney-aws

docs/lsp.md

@@ -55,6 +55,7 @@ sequenceDiagram
     ```
 4. Uncomment the `__AMAZONQLSP_PATH` and `__AMAZONQLSP_UI` variables in the `amazonq/.vscode/launch.json` extension configuration
 5. Use the `Launch LSP with Debugging` configuration and set breakpoints in VSCode or the language server
+6. (Optional): Enable `"amazonq.trace.server": "on"` or `"amazonq.trace.server": "verbose"` in your VSCode settings to view detailed log messages sent to/from the language server. These log messages will show up in the "Amazon Q Language Server" output channel
 
 ## Amazon Q Inline Activation