Add transformation builder sdk reference docs (#540)

Author: strausr

README.md

@@ -11,6 +11,15 @@ This SDK can also be used with [popular frontend frameworks](https://cloudinary.
 This Readme provides basic installation and usage information.
 For the complete documentation, see the [URL-Gen SDK Guide](https://cloudinary.com/documentation/javascript_integration) and the [URL-Gen Reference](https://cloudinary.com/documentation/sdks/js/url-gen/index.html).
 
+NOTE: When using the url-gen library, an additional transformation-builder-sdk library is installed as a dependency. 
+This library handles the transformation generation part of the URL and as such, all transformation actions are imported from this library. 
+Therefore, you can import all transformations either from @cloudinary/url-gen (as demonstrated in the documentation), or directly from the transformation-builder-sdk library, for example:
+```javascript
+import {scale} from '@cloudinary/transformation-builder-sdk/actions/resize';
+``` 
+
+You can find all available transformations in the [Transformation Builder reference](https://cloudinary.com/documentation/sdks/js/transformation-builder/index.html).
+
 
 ## Table of Contents
 - [Key Features](#key-features)

jsdoc.config.json

@@ -17,7 +17,6 @@
   "templates": {
     "cleverLinks": true,
     "navMembers" : [
-      {"kind": "namespace", "title": "Actions & Qualifiers", "summary": "All documented namespaces."},
       {"kind": "interface", "title": "Interfaces", "summary": "All documented interfaces."},
       {"kind": "tutorial", "title": "Help & Examples", "summary": "All available tutorials."}
     ],