docs($interval): fix missing square brackets in example

Closes #8228

Author: Josh Schreuder

src/ng/interval.js

@@ -83,7 +83,7 @@ function $IntervalProvider() {
       *           // Make sure that the interval nis destroyed too
       *           $scope.stopFight();
       *         });
-      *       })
+      *       }])
       *       // Register the 'myCurrentTime' directive factory method.
       *       // We inject $interval and dateFilter service since the factory method is DI.
       *       .directive('myCurrentTime', ['$interval', 'dateFilter',
@@ -112,7 +112,7 @@ function $IntervalProvider() {
       *               $interval.cancel(stopTime);
       *             });
       *           }
-      *         });
+      *         }]);
       *   </script>
       *
       *   <div>