docs(error/ng/btstrpd): note that loading angular.js twice can cause the error

amagee · petebacondarwin · commit 6b18a564dd32 · 2014-03-02T15:56:13.000Z
Closes #6502
diff --git a/docs/content/error/ng/btstrpd.ngdoc b/docs/content/error/ng/btstrpd.ngdoc
@@ -3,9 +3,11 @@
 @fullName App Already Bootstrapped with this Element
 @description
 
-Occurs when calling angular.bootstrap on an element that has already been bootstrapped.
+Occurs when calling {@link angular.bootstrap} on an element that has already been bootstrapped.
+
+This usually happens when you accidentally use both `ng-app` and `angular.bootstrap` to bootstrap an
+application.
 
-This usually happens when you accidentally use both `ng-app` and `angular.bootstrap` to bootstrap an application.
 
 ```
 <html>
@@ -18,7 +20,9 @@ This usually happens when you accidentally use both `ng-app` and `angular.bootst
 </html>
 ```
 
-Note that for bootrapping purposes, the `<html>` element is the same as `document`, so the following will also throw an error.
+Note that for bootrapping purposes, the `<html>` element is the same as `document`, so the following
+will also throw an error.
+
 ```
 <html>
 ...
@@ -27,3 +31,22 @@ Note that for bootrapping purposes, the `<html>` element is the same as `documen
 </script>
 </html>
 ```
+
+You can also get this error if you accidentally load AngularJS itself more than once.
+
+```
+<html ng-app>
+  <head>
+    <script src="angular.js"></script>
+    
+    ...
+
+  </head>
+  <body>
+    
+    ...
+
+    <script src="angular.js"></script>
+  </body>
+</html>
+```
