Update README

README.rst

@@ -1,23 +1,52 @@
-This repository contains all the packages of Tryton.
+######
+Tryton
+######
 
-To have symlinks for modules created automatically on Mercurial update, add
-the following line to the hooks section of your .hg/hgrc:
+Tryton is business software, ideal for companies of any size, easy to use,
+complete and 100% Open Source.
 
-    update.modules = .hooks/link_modules
+This repository contains the source for all the packages of Tryton.
 
-To automatically generate requirements files on Mercurial update, add
-the following line to the hooks section of your .hg/hgrc:
+Setup
+=====
 
-    update.requirements = .hooks/update_requirements
+It is recommended to isolate the development within a Python `virtual
+environment <https://docs.python.org/tutorial/venv.html>`_.
+
+From the root directory of the repository run:
+
+.. code-block:: console
+
+   .hooks/update_requirements
+   .hooks/link_modules
 
 .. warning::
 
-    The process of updating requirements files may take some time
+   The process of updating requirements files may take some time.
 
-Then you can install the required dependencies with:
+Install the dependencies with:
 
-    pip install -r requirements.txt
+.. code-block:: console
 
-And you can also install the development dependencies with:
+   pip install -e trytond -e tryton -e proteus -r requirements.txt -r requirements-dev.txt
 
-    pip install -r requirements-dev.txt
+Automate
+========
+
+To automate the process, add the following lines to the ``[hooks]`` section of
+the ``.hg/hgrc``:
+
+.. code-block:: ini
+
+   [hooks]
+   update.modules = .hooks/link_modules
+   update.requirements = .hooks/update_requirements
+
+On ``hg update``, the first hook will automatically create symlinks for modules
+and the second hook will automatically generate requirements files.
+
+Submit Change
+=============
+
+For information about how to submit change, please read on and follow the
+`guidelines <https://www.tryton.org/develop>`_.