[Docs] Fix mkdocs.yml paths (#2820)

docs/docs/tutorials/index.md

@@ -79,6 +79,6 @@ Explore practical implementations tailored for specific scenarios:
 
 Add custom authentication and authorization to an existing LangGraph Platform deployment in the following three-part guide:
 
-1. [Setting Up Custom Authentication](./auth/getting_started.md): Implement OAuth2 authentication to authorize users on your deployment
-2. [Resource Authorization](./auth/resource_auth.md): Let users have private conversations
-3. [Connecting an Authentication Provider](./auth/add_auth_server.md): Add real user accounts and validate using OAuth2
+1. [Setting Up Custom Authentication](auth/getting_started.md): Implement OAuth2 authentication to authorize users on your deployment
+2. [Resource Authorization](auth/resource_auth.md): Let users have private conversations
+3. [Connecting an Authentication Provider](auth/add_auth_server.md): Add real user accounts and validate using OAuth2

docs/mkdocs.yml

@@ -143,9 +143,9 @@ nav:
           - tutorials/extraction/retries.ipynb
       - LangGraph Platform:
           - LangGraph Platform: concepts#langgraph-platform
-          - docs/docs/tutorials/auth/getting_started.md
-          - docs/docs/tutorials/auth/resource_auth.md
-          - docs/docs/tutorials/auth/add_auth_server.md
+          - tutorials/auth/getting_started.md
+          - tutorials/auth/resource_auth.md
+          - tutorials/auth/add_auth_server.md
 
   - How-to Guides:
       - how-tos/index.md