Update README description

README.md

@@ -4,10 +4,46 @@ GLiCID JupyterLite
 ✨ Try it in your browser ✨
 ----------------------------
 
-[![lite-badge](_static/badge.svg)](https://jupyterlite.glicid.fr)
+[![badge](https://jupyterlite.glicid.fr/_static/badge.svg)](https://jupyterlite.glicid.fr/lab/?path=example.ipynb)
 
-Local testing
--------------
+
+🏗️ Create a new JupyterLite
+---------------------------
+
+To create a new JupyterLite environment, you need to create a `new-branch` in this repo and push your changes. Gitlab-CI will build your source and deployed it on GLiCID at:
+```
+https://my-branch.jupyterlite.glicid.fr
+```
+
+All the content of the lab in the [`files/`](./files/) folder will be publically avaible.
+
+You can point a specific notebook by adding the redirective `?path=` in the URL:
+```
+https://<my-branch>.jupyterlite.glicid.fr/lab/?path=<my-notebook>.ipynb
+```
+
+
+🎨 Create you own badge
+-----------------------
+Badge image URL:
+```
+https://jupyterlite.glicid.fr/_static/badge.svg
+```
+
+In Markdown:
+```
+[![badge](https://jupyterlite.glicid.fr/_static/badge.svg)](https://<my-branch>.jupyterlite.glicid.fr/lab/?path=<my-notebook>.ipynb)
+```
+
+Badge link code in reStructuredText:
+```
+.. image:: https://jupyterlite.glicid.fr/_static/badge.svg
+   :target:https://<my-branch>.jupyterlite.glicid.fr/lab/?path=<my-notebook>.ipynb
+```
+
+
+🚧 Build the JupyterLite locally
+--------------------------------
 ```bash
 python -m venv venv
 source venv/bin/activate