Add configuration diff sample

MatTheCat · MatTheCat · commit db85c57de533 · 2022-12-19T09:39:40.000+01:00
diff --git a/UPGRADE-6.3.md b/UPGRADE-6.3.md
@@ -11,6 +11,32 @@ FrameworkBundle
 
  * Deprecate `framework:exceptions` tag, unwrap it and replace `framework:exception` tags’ `name` attribute by `class`.
 
+   Before:
+   ```xml
+   <!-- config/packages/framework.xml -->
+   <framework:config>
+       <framework:exceptions>
+           <framework:exception
+               name="Symfony\Component\HttpKernel\Exception\BadRequestHttpException"
+               log-level="info"
+               status-code="422"
+           />
+       </framework:exceptions>
+   </framework:config>
+   ```
+
+   After:
+   ```xml
+   <!-- config/packages/framework.xml -->
+   <framework:config>
+       <framework:exception
+           class="Symfony\Component\HttpKernel\Exception\BadRequestHttpException"
+           log-level="info"
+           status-code="422"
+       />
+   </framework:config>
+   ```
+
 HttpKernel
 ----------
 
