[AAE-6358] Storybook sections on GitHub docs (#7358)

* [AAE-6358] added storybook section to core readme

* [AAE-6358] added storybook seciton to content-services readme

* [AAE-6358] fixed content-services readme

* [AAE-6358] added storybook section to process-services-cloud readme

* [AAE-6358] added readme for stories library

* [AAE-6358] added libraries list do root readme

lib/content-services/README.md

@@ -9,6 +9,7 @@ Contains a variety of components, directives and services used throughout ADF
 - [Documentation](#documentation)
 - [Prerequisites](#prerequisites)
 - [Install](#install)
+- [Storybook](#storybook)
 - [License](#license)
 
 <!-- tocstop -->
@@ -33,6 +34,21 @@ necessary configuration, see this [page](https://github.com/Alfresco/alfresco-ng
 npm install @alfresco/adf-content-services
 ```
 
+## Storybook
+
+In case you would like to aggregate all the stories from content services library use
+
+```
+nx run content-services:storybook
+```
+And navigate to `http://localhost:4400/`.
+
+To create a Storybook content services library build use
+
+```
+nx run content-services:build-storybook
+```
+
 ## License
 
 [Apache Version 2.0](https://github.com/Alfresco/alfresco-ng2-components/blob/master/LICENSE)