docs: Update README and DEVELOP

DEVELOP.md

@@ -16,12 +16,14 @@
 
 1. Go to http://localhost:3000
 
-1.  Happy hacking!
+1. Initialize git hooks
 
     ```Bash
-    cd src/addons/volto-metadata-block/
+    yarn prepare
     ```
 
+1. Happy hacking!
+
 ### Or add @eeacms/volto-metadata-block to your Volto project
 
 Before starting make sure your development environment is properly set. See [Volto Developer Documentation](https://docs.voltocms.com/getting-started/install/)
@@ -48,18 +50,15 @@ Before starting make sure your development environment is properly set. See [Vol
 
 1.  Install
 
-        yarn develop
+        make develop
         yarn
 
 1.  Start backend
 
-        docker pull plone
-        docker run -d --name plone -p 8080:8080 -e SITE=Plone -e PROFILES="profile-plone.restapi:blocks" plone
+        docker run --pull always -it --rm --name plone -p 8080:8080 -e SITE=Plone plone/plone-backend
 
     ...wait for backend to setup and start - `Ready to handle requests`:
 
-        docker logs -f plone
-
     ...you can also check http://localhost:8080/Plone
 
 1.  Start frontend

README.md

@@ -15,11 +15,16 @@
 [![Duplicated Lines (%)](https://sonarqube.eea.europa.eu/api/project_badges/measure?project=volto-metadata-block-develop&metric=duplicated_lines_density)](https://sonarqube.eea.europa.eu/dashboard?id=volto-metadata-block-develop)
 
 
-[Volto](https://github.com/plone/volto) add-on
 
-## Features
+[Volto](https://github.com/plone/volto#volto) add-on: Metadata Block that enables Document metadata insertion within the Blocks area.
 
-Demo GIF
+### Metadata block
+
+![Demo](https://github.com/eea/volto-metadata-block/raw/docs/docs/volto-metadata-block.gif)
+
+### Metadata section block
+
+![Demo](https://github.com/eea/volto-metadata-block/raw/docs/docs/volto-metadata-section-block.gif)
 
 ## Getting started
 
@@ -75,11 +80,16 @@ Go to http://localhost:3000
 
 ## Release
 
-See [RELEASE.md](https://github.com/eea/volto-metadata-block/blob/master/RELEASE.md).
+See [RELEASE.md](https://github.com/eea/volto-metadata-block/blob/master/RELEASE.md)
+
 
 ## How to contribute
 
-See [DEVELOP.md](https://github.com/eea/volto-metadata-block/blob/master/DEVELOP.md).
+See [DEVELOP.md](https://github.com/eea/volto-metadata-block/blob/master/DEVELOP.md)
+
+## See also
+
+- [volto-slate-metadata-mentions](https://github.com/eea/volto-slate-metadata-mentions)
 
 ## Copyright and license