fix: full width for sheet v9

- Add margin for better visibility
- Add web_sheet_full_width migration state Done
- Update to new OCA README.rst format.

web_sheet_full_width/__openerp__.py

@@ -20,8 +20,8 @@
 ##############################################################################
 {
     "name": "Show sheets with full width",
-    "version": "8.0.1.0.0",
-    "author": "Therp BV,Odoo Community Association (OCA)",
+    "version": "9.0.1.0.0",
+    "author": "Therp BV,Sudokeys,Odoo Community Association (OCA)",
     "license": "AGPL-3",
     "summary": "Use the whole available screen width when displaying sheets",
     "description": """
@@ -43,9 +43,6 @@ Icon courtesy of http://www.picol.org/ (size_width.svg)
         "view/qweb.xml",
     ],
     "auto_install": False,
-    'installable': False,
+    'installable': True,
     "application": False,
-    "external_dependencies": {
-        'python': [],
-    },
 }