Update OpenAPI troubleshooting for trailing slash tolerance (#5478)

* Update troubleshooting to reflect trailing slash tolerance in OpenAPI path resolution

Generated-By: mintlify-agent

* Apply suggestions from code review

Co-authored-by: Ethan Palm <56270045+ethanpalm@users.noreply.github.com>

---------

Co-authored-by: mintlify[bot] <109931778+mintlify[bot]@users.noreply.github.com>
Co-authored-by: Ethan Palm <56270045+ethanpalm@users.noreply.github.com>

Author: mintlify[bot]

api-playground/troubleshooting.mdx

@@ -33,13 +33,18 @@ If your API pages aren't displaying correctly, check these common configuration
   </Accordion>
   <Accordion title="One of my OpenAPI pages is completely blank">
     This is usually caused by a misspelled `openapi` field in the page metadata. Make sure
-    the HTTP method and path match the HTTP method and path in the OpenAPI document exactly.
+    the HTTP method and path match the HTTP method and path in the OpenAPI document.
+
+    <Note>
+      Mintlify automatically resolves trailing slash differences between your `openapi` reference
+      and the OpenAPI specification. For example, `GET /users/{id}/` matches a specification path of `/users/{id}`.
+    </Note>
 
     Here's an example of how things might go wrong:
 
     ```mdx get-user.mdx
     ---
-    openapi: "GET /users/{id}/"
+    openapi: "GET /user/{id}"
     ---
     ```
 
@@ -49,8 +54,8 @@ If your API pages aren't displaying correctly, check these common configuration
         get: ...
     ```
 
-    Notice that the path in the `openapi` field has a trailing slash, whereas the path in the OpenAPI
-    document does not.
+    Notice that the path in the `openapi` field says `/user/{id}` (singular), whereas the path in the OpenAPI
+    document is `/users/{id}` (plural).
 
     Another common issue is a misspelled filename. If you are specifying a particular OpenAPI document
     in the `openapi` field, ensure the filename is correct. For example, if you have two OpenAPI