--- /dev/null
+Description:
+ Creates a migration to add the sessions table used by the Active Record
+ session store. Pass the migration name, either CamelCased or under_scored,
+ as an argument.
+
+Example:
+ `./script/generate session_migration CreateSessionTable`
+
+ With 4 existing migrations, this creates the AddSessionTable migration
+ in db/migrate/005_add_session_table.rb