fix toc link

Author: burtenshaw

docs/inference-providers/_toctree.yml

@@ -17,7 +17,7 @@
     title: Your First API Call
   - local: guides/building-first-app
     title: Building Your First AI App
-  - local: guides/structured-outputs
+  - local: guides/structured-output
     title: Structured Outputs with LLMs
 
 - title: Providers