Merge branch '5.4' into 6.4

* 5.4:
  Update mercure.rst: Moving tip about debugger upwards

Author: javiereguiluz

mercure.rst

@@ -306,6 +306,10 @@ as patterns:
     }
     </script>
 
+.. tip::
+
+    Test if a URI Template matches a URL using `the online debugger`_
+
 .. tip::
 
     Google Chrome DevTools natively integrate a `practical UI`_ displaying in live
@@ -321,10 +325,6 @@ as patterns:
     * click on the request to the Mercure hub
     * click on the "EventStream" sub-tab.
 
-.. tip::
-
-    Test if a URI Template match a URL using `the online debugger`_
-
 Discovery
 ---------