Update docs/404.md

Co-authored-by: Vincent Biret <vincentbiret@hotmail.com>

docs/404.md

@@ -5,4 +5,4 @@ nav_exclude: true
 
 # Kiota documentation has moved
 
-Our documentation has been moved to [Microsoft Learn](https://learn.microsoft.com/openapi). Please update your bookmarks.
+Our documentation has been moved to [Microsoft Learn](https://learn.microsoft.com/openapi/kiota/). Please update your bookmarks.