Install 'sale', prequisite for the exercise

Guewen Baconnier · Guewen Baconnier · commit 19fc197ddf51 · 2017-07-25T16:52:59.000+02:00
diff --git a/odoo/migration.yml b/odoo/migration.yml
@@ -19,5 +19,6 @@ migration:
               - anthem songs.install.data_demo::main
       addons:
         upgrade:
+          - sale
           - server_environment
           - base_technical_features
