Update installation.mdx

mintlify[bot] · web-flow · commit c2bd864a4b24 · 2025-12-07T00:22:01.000Z
diff --git a/installation.mdx b/installation.mdx
@@ -67,7 +67,7 @@ If you attempt to run on a port that is already in use, it will use the next ava
 Port 3000 is already in use. Trying 3001 instead.
 ```
 
-## Skip OpenAPI processing
+### Skip OpenAPI processing
 
 If you have many OpenAPI files, skip OpenAPI file processing during local development to improve performance by using the `--disable-openapi` flag:
 
