Update llms.txt file (#1019)

Author: MaedahBatool

docs-chatbot.md

@@ -9,3 +9,11 @@ pnpm langbase-sync
 ```
 
 This will verify all the changes since the last sync, update these files, and then write the commit hash to `baseai/memory/docs/index.ts` file which you should commit to keep track.
+
+### Update llms.txt file
+
+Run the following command to update the `llms.txt` file:
+
+```sh
+pnpm llmstxt
+```