fix reference to foundry models FAQ in TOC

Author: msakande

articles/ai-foundry/toc-files/models/toc.yml

@@ -401,4 +401,4 @@ items:
       - name: Customer Copyright Commitment
         href: ../../responsible-ai/openai/customer-copyright-commitment.md
 - name: Foundry Models FAQ
-  href: ../../faq.yml
+  href: ../../foundry-models/faq.yml