Update docs.yml

Add permanent and fix formatting for redirect

Author: dannysheridan

fern/docs.yml

@@ -472,9 +472,9 @@ redirects:
   - source: /learn/api-definition/openapi/:slug*
     destination: /learn/openapi-definition/:slug*
     permanent: true
-  
   - source: /learn/openapi-definition/extensions/webhooks
     destination: /learn/openapi-definition/endpoints/webhooks
+    permanent: true
 
   # API Definition Fern specific redirects first
   - source: /learn/api-definition/fern/endpoints/:slug*