fix spacing

Author: ethanpalm

changelog.mdx

@@ -36,7 +36,7 @@ noindex: true
     - Resolved anchor link issues in nested tabs
 
   ## Assistant updates
-- Unified Assistant API that's compatible with the AI SDK
+  - Unified Assistant API that's compatible with the AI SDK
   - Copy button added to chat responses
   - Improved message retry functionality
   - Less verbose default responses for better user experience