Added info about Django admin, shella nd how to create the superuser.

    # esap/logs service_name

### Building errors

It is common for the build process to fail with a "404 not found" error on an apt-get instrucions, as apt repositories often change their IP addresses. In such case, try:

    $ esap/build nocache

### Django Admin

Connect directly to the api-gateway service:

    http://localhost:8000/esap-api/admin/

### Django Shell

$ esap/shell api-gateway "cd /opt/esap-api-gateway/esap &&  python3 manage.py shell --settings=esap.settings.dev"

### Create Django Superuser

From the Django shell:

    >>> from django.contrib.auth.models import User

    >>> user = User.objects.create_user('admin', password='admin')

    >>> user.is_admin = True

    >>> user.is_superuser = True

    >>> user.is_staff = True

    >>> user.save()

 No newline at end of file