update it

docs/_docs/tutorial/02-VoLTE-setup.md

@@ -783,12 +783,13 @@ $ systemctl start kamailio_icscf kamailio_pcscf kamailio_scscf
 Please refer to instructions at [https://open5gs.org/open5gs/docs/guide/02-building-open5gs-from-sources/](https://open5gs.org/open5gs/docs/guide/02-building-open5gs-from-sources/)
 
 If you are using OpenStack, installing Open5GS and Kamailio IMS on the same machine is very important because the **Framed-IP-Address** in the AAR request via Rx interface takes received IP address and port in ims_qos module, hence, if the Open5GS is on a separate VM/machine, the IP and port received in received_ip and received_port values seen by Kamailio IMS will be the NATed IP of the Open5GS machine resulting in failing of AAR request.
-{: .notice--warning}
+{: .notice--danger}
 
 I made some modifications in order to force UE to PS domain attach and use IPv4. You can refer to the **hacks** branch of [https://github.com/herlesupreeth/open5gs](https://github.com/herlesupreeth/open5gs)
+{: .notice--info}
 
 Modify below mentioned parts of configuration files in addition to **Configure Open5GS** section. For reference, look at the configuration files at [https://github.com/herlesupreeth/Open5gs_Config](https://github.com/herlesupreeth/Open5gs_Config)
-{: .notice--info}
+{: .notice--warning}
 
 - Change realm of components to `epc.mnc001.mcc001.3gppnetwork.org`
 - Define IP pools for APNs used i.e one for default APN and another for IMS apn