Added VERY basic AngularJS, Knockout and React articles.

They still need to be expanded.

_data/nav.yml

@@ -220,8 +220,11 @@
 
 - url: "integrations"
   pages:
+  - url: "angularjs"
   - url: "bootstrap"
   - url: "jquery"
+  - url: "knockout"
+  - url: "react"
   - url: "wordpress"
 
 - url: "changelog"

integrations/angularjs.md

@@ -0,0 +1,9 @@
+---
+layout: default
+title: AngularJS Integration
+title_nav: AngularJS
+keywords: Angular
+---
+
+
+The [ui-tinymce project](https://github.com/angular-ui/ui-tinymce) on Github is being actively maintained.

integrations/knockout.md

@@ -0,0 +1,7 @@
+---
+layout: default
+title: KnockoutJS Integration
+title_nav: Knockout
+---
+
+Michael Papworth has developed a Knockout binding for TinyMCE. Check out his [tinymce-knockout-binding project](https://github.com/michaelpapworth/tinymce-knockout-binding) on Github.

integrations/react.md

@@ -0,0 +1,8 @@
+---
+layout: default
+title: React Integration
+title_nav: React
+---
+
+
+The [react-tinyme project](https://github.com/instructure-react/react-tinymce) on Github is being actively maintained. Check it out!