move module description to README.rst file

README.rst

@@ -0,0 +1,5 @@
+Adds "Sent" box. It's the same as archive but filtered by Author.
+
+Tested on Odoo 8.0 ab7b5d7732a7c222a0aea45bd173742acd47242d
+
+Further information and discussion: https://yelizariev.github.io/odoo/module/2015/02/19/sentbox.html

__openerp__.py

@@ -4,13 +4,6 @@
     'author' : 'Ivan Yelizariev',
     'category' : 'Sale',
     'website' : 'https://yelizariev.github.io',
-    'description': """
-Adds "Sent" box. It's the same as archive but filtered by Author.
-
-Tested on Odoo 8.0 ab7b5d7732a7c222a0aea45bd173742acd47242d
-
-Further information and discussion: https://yelizariev.github.io/odoo/module/2015/02/19/sentbox.html
-    """,
     'depends' : ['mail'],
     'data':[
         'views.xml',