Fix docs

libs/lib/README.rst

@@ -21,7 +21,7 @@ xaal.lib depends on :
 Install
 ~~~~~~~
 Please refer to the official `full documentation to install the lib in a virtualenv
-<https://redmine.imt-atlantique.fr/svn/xaal/code/Python/branches/0.7/README.html>`_
+<https://gitlab.imt-atlantique.fr/xaal/code/python/-/blob/main/README.rst>`_
 
 
 Usage
@@ -77,6 +77,23 @@ Let's take a look at a simple lamp device :
    eng.run()
 
 
+To avoid to rewrite the same code for each device, you can use the xaal.schemas package.
+This package provides a set of predefined devices, you can use them as a template to create your own device.
+
+.. code-block:: python
+
+   from xaal.schemas import devices
+   from xaal.lib import Engine
+
+   # create and configure the lamp device
+   dev = devices.lamp()
+
+   # last step, create an engine and register the lamp
+   eng = Engine()
+   eng.add_device(dev)
+   eng.run()
+
+
 FAQ
 ~~~
 The core engine run forever so how can I use it in webserver, GUI or to develop device