docs: rename Enum validation section title

docs/en/docs/tutorial/path-params.md

@@ -160,7 +160,7 @@ Because the available values for the *path parameter* are predefined, the intera
 
 <img src="/img/tutorial/path-params/image03.png">
 
-### Common Validation Errors with Enums { #common-validation-errors-with-enums }
+### Request Validation with Enums { #request-validation-with-enums }
 
 When using an `Enum` for a path parameter, FastAPI will validate the value automatically.