Creating the User Template

In the user template, we just want to display the message we created in the user_page view. That message indicates whether the user is a registered user, based on the username.

If the username, as given in the URL that the user enters, is found in the database, the user template will welcome the user by name. If the username is not among the registered users, the message displayed by the template will inform the user that he or she is not a registered user.