docs(ngRequired): add 'restrict' info

MichaelJGW · Narretz · commit 4b38b44c9197 · 2016-05-06T15:56:01.000+02:00
The Angular Docs do not show the restrictions Closes angular#14541
diff --git a/src/ng/directive/validators.js b/src/ng/directive/validators.js
@@ -2,6 +2,7 @@
 /**
  * @ngdoc directive
  * @name ngRequired
+ * @restrict A
  *
  * @description
  *
