Update api-playground/openapi-setup.mdx

Author: mintlify[bot]

api-playground/openapi-setup.mdx

@@ -500,14 +500,24 @@ openapi-schema: OrderItem
 ---
 ```
 
+```mdx With specific file
+---
+openapi-schema: path/to/openapi.json OrderItem
+---
+```
+
 ```mdx Format
 ---
 openapi-schema: "schema-key"
+# or
+openapi-schema: "filepath schema-key"
 ---
 ```
 
 </CodeGroup>
 
+When you have multiple OpenAPI files with schemas that have the same name, you can specify which file to use by including the filepath before the schema name. This is useful for multi-language documentation where you have translated versions of the same schema in different OpenAPI files.
+
 ## Webhooks
 
 Webhooks are HTTP callbacks that your API sends to notify external systems when events occur. Webhooks are supported in OpenAPI 3.1+ documents.