docs($interval): correcting example code indentation

Bueno!

Closes #10372

Author: saibotsivad

src/ng/interval.js

@@ -57,33 +57,33 @@ function $IntervalProvider() {
       *             // Don't start a new fight if we are already fighting
       *             if ( angular.isDefined(stop) ) return;
       *
-      *           stop = $interval(function() {
-      *             if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {
-      *               $scope.blood_1 = $scope.blood_1 - 3;
-      *               $scope.blood_2 = $scope.blood_2 - 4;
-      *             } else {
-      *               $scope.stopFight();
+      *             stop = $interval(function() {
+      *               if ($scope.blood_1 > 0 && $scope.blood_2 > 0) {
+      *                 $scope.blood_1 = $scope.blood_1 - 3;
+      *                 $scope.blood_2 = $scope.blood_2 - 4;
+      *               } else {
+      *                 $scope.stopFight();
+      *               }
+      *             }, 100);
+      *           };
+      *
+      *           $scope.stopFight = function() {
+      *             if (angular.isDefined(stop)) {
+      *               $interval.cancel(stop);
+      *               stop = undefined;
       *             }
-      *           }, 100);
-      *         };
-      *
-      *         $scope.stopFight = function() {
-      *           if (angular.isDefined(stop)) {
-      *             $interval.cancel(stop);
-      *             stop = undefined;
-      *           }
-      *         };
-      *
-      *         $scope.resetFight = function() {
-      *           $scope.blood_1 = 100;
-      *           $scope.blood_2 = 120;
-      *         };
-      *
-      *         $scope.$on('$destroy', function() {
-      *           // Make sure that the interval is destroyed too
-      *           $scope.stopFight();
-      *         });
-      *       }])
+      *           };
+      *
+      *           $scope.resetFight = function() {
+      *             $scope.blood_1 = 100;
+      *             $scope.blood_2 = 120;
+      *           };
+      *
+      *           $scope.$on('$destroy', function() {
+      *             // Make sure that the interval is 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',