Docs: Improved the 'Documentation' section of the README file (see ck…

…editor/ckeditor5-vue#45).

README.md

@@ -11,9 +11,16 @@
 
 Official [CKEditor 5](https://ckeditor.com/ckeditor-5/) rich text editor component for React.
 
-## Documentation
+## [Developer Documentation](https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/react.html) 📖
 
-See the [React component](https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/react.html) article in the [CKEditor 5 documentation](https://ckeditor.com/docs/ckeditor5/latest).
+See the ["Rich text editor component for React"](https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/react.html) guide in the [CKEditor 5 documentation](https://ckeditor.com/docs/ckeditor5/latest) to learn more:
+
+* [Quick start](https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/react.html#quick-start)
+	* [Component properties](https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/react.html#component-properties)
+	* [Customizing the builds](https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/react.html#customizing-the-builds)
+* [Integrating CKEditor 5 built from source](https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/react.html#integrating-ckeditor-5-built-from-source)
+	* [Using `create-react-app@2`](https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/react.html#using-create-react-app2)
+	* [Using `create-react-app@1`](https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/react.html#using-create-react-app1)
 
 ## Contributing