set admin email config variable

roles/pagure/upstreamfirst-frontend/templates/pagure.cfg

@@ -34,6 +34,9 @@ DB_URL = 'postgresql://{{ new_pagure_db_user }}:{{ new_pagure_db_pass }}@{{ new_
 ### The FAS group in which the admin of pagure are
 ADMIN_GROUP = {{ new_pagure_admin_groups }}
 
+# The publicly visible admin email address
+ADMIN_EMAIL = 'admin@fedoraproject.org'
+
 ### The email address to which the flask.log will send the errors (tracebacks)
 EMAIL_ERROR = '{{ pagure_admin_email }}'