docs(guide/scope): access the current element's scope in the console.

Closes angular#4884

Author: smarigowda

docs/content/guide/scope.ngdoc

@@ -177,7 +177,7 @@ To examine the scope in the debugger:
   2. The debugger allows you to access the currently selected element in the console as `$0`
     variable.
 
-  3. To retrieve the associated scope in console execute: `angular.element($0).scope()`
+  3. To retrieve the associated scope in console execute: `angular.element($0).scope()` or just type $scope
 
 
 ## Scope Events Propagation