docs(readme): update brand naming

Author: Narretz

README.md

@@ -2,8 +2,10 @@
 
 This repo contains the content served at [code.angularjs.org](https://code.angularjs.org).
 
-The site code.angularjs.org is *not* a CDN. The angular builds there are to be
-used during the development of angularjs. The site is not suitable for
-production usage.
+The folders for each version are auto-generated, so don't open pull requests against this code.
+Features and bug reports can be reported at the [AngularJS Github Repository](https://github.com/angular/angular.js).
 
-If you are looking for a CDN link to angularjs visit [angularjs.org](https://www.angularjs.org/).
+The site code.angularjs.org is *not* a CDN. The AngularJS builds there are to be
+used only during development. The site is not suitable for production usage.
+
+If you are looking for a CDN link to AngularJS visit [angularjs.org](https://www.angularjs.org/).