fix(guide): simplify directory structure

guide/english/angularjs/index.md

@@ -0,0 +1,32 @@
+---
+title: AngularJS
+---
+## AngularJS
+
+AngularJS (versions 1.x) is an open source front-end JavaScript framework. AngularJS extends HTML to develop rich and powerful front-ends. 
+It reduces the repetitive use of HTML code. This repetition can be avoided by using the directives provided by AngularJS which saves 
+much time and effort.
+
+**Install**:
+
+npm:
+
+```shell 
+npm install angular
+```
+HTML:
+
+```html
+<script src="/node_modules/angular/angular.js"></script>
+```
+
+bower:
+
+```shell
+bower install angular
+```
+HTML:
+
+```html
+<script src="/bower_components/angular/angular.js"></script>
+```