<li class="nav-item">
  <a class="nav-link" href="{{ url_for('admin.dashboard') }}">Dashboard</a>
</li>
<li role="separator" class="divider"></li>
<li class="nav-item">
  <a class="nav-link" href="{{ url_for('admin.users') }}">Users</a>
</li>
<li class="nav-item">
  <a class="nav-link" href="{{ url_for('admin.coupons') }}">Coupons</a>
</li>
<li class="nav-item">
  <a class="nav-link" href="{{ url_for('admin.invoices') }}">Invoices</a>
</li>
