Updating a review

To be able to update reviews, we need to follow these steps:

1. Update the movies.show template.
2. Create the movies edit_review template.
3. Define the edit_review function.
4. Configure the edit review URL.

Updating movies.show template

In /movies/templates/movies/show.html file, add the following bold text:

          …
          {% for review in template_data.reviews %}
          <li class="list-group-item pb-3 pt-3">
            <h5 class="card-title">
              Review by {{ review.user.username }}
            </h5>
       ...