[DependencyInjection][ErrorHandler][FrameworkBundle][HttpKernel][TwigBridge] Fix "a" before "URL"

Author: teradrive65k

CHANGELOG.md

@@ -126,7 +126,7 @@ CHANGELOG
 
  * added `%env(trim:...)%` processor to trim a string value
  * added `%env(default:param_name:...)%` processor to fallback to a parameter or to null when using `%env(default::...)%`
- * added `%env(url:...)%` processor to convert an URL or DNS into an array of components
+ * added `%env(url:...)%` processor to convert a URL or DNS into an array of components
  * added `%env(query_string:...)%` processor to convert a query string into an array of key values
  * added support for deprecating aliases
  * made `ContainerParametersResource` final and not implement `Serializable` anymore