Add module tutorial

review32711002

doc/tutorial/module/setup_database.rst

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+.. _tutorial-module-setup-database:
+
+Initialize the database
+=======================
+
+By default Tryton, use an SQLite database stored in the folder :file:`db` of
+your home directory.
+This can be changed in the ``database`` section of the `configuration
+<topics-configuration>`.
+
+Now creating a Tryton database is only a matter of executing the following
+commands:
+
+.. code-block:: console
+
+   $ mkdir ~/db
+   $ touch ~/db/test.sqlite
+   $ trytond-admin -d test --all
+
+You will be prompted to set the administrator email and password.
+
+Once the database is initialized you can run the Tryton server:
+
+.. code-block:: console
+
+    $ trytond
+
+Connecting to the database using a Tryton client you will be greeted by the
+module configuration wizard.
+
+We will continue with :ref:`the anatomy of the module <tutorial-module-anatomy>`.