add demo users

defaults/main.yml

@@ -14,6 +14,12 @@ mosquitto_iptables_enabled: False
 
 mosquitto_password_auth_enabled: False
 mosquitto_password_auth_file: "{{ mosquitto_base_dir }}/passwd"
+# mosquitto_password_auth_users: (defaults to not set)
+#   - admin:
+#     password: mysecret
+#   - user1:
+#     password: very_secure
+
 mosquitto_acl_enabled: False
 mosquitto_acl_file: "{{ mosquitto_base_dir }}/aclfile"