title: Assign users to group in django via HTML template and not via admin
body: <p>I have created a django app in which users can register via SignUp Form. I have created two groups <code>Admin Users</code> and <code>Staff Users</code>. When any user signs up he is not allocated to any of the group. I want to create a webpage where all the users will be displayed and there should be a drop-down in front of user names which will let the logged in user (a member of <code>Admin User</code> group, I will restrict this page to <code>Admin Users</code> group only) to select the group among the available groups. In simple words any member of group <code>Admin User</code> should be able to add any other member who is not assigned to any group. I need a basic help on how the views.py and HTML page should be look like.</p>