feat: Add a reference to the appendix H in troubleshooting 10

docs/guide/Trouble_Shooting.md

@@ -116,7 +116,7 @@ To see the details of H2C packets, do the following configuration.
 
     Decode the packets from the TCP ports listened by each NF as HTTP2 packets.
 
-### 10. To clear all iptables rules
+### 10. Clear all iptables rules
 
 If something went wrong, it's possible to reset iptables' rules back using:
 ```bash
@@ -131,6 +131,8 @@ sudo iptables -X
 
 Then remember to add back the [rules required](./5-install-ueransim.md#7-testing-ueransim-against-free5gc) by the free5GC.
 
+**Note:** You may consider using the `reload_host_config.sh` script for this task (see [this appendix section](./Appendix.md#appendix-h-using-the-reload_host_configsh-script))
+
 ### 11. Fix UERANSIM's EAP-AKA' behavior
 
 If you face issues similar to the one reported on [the forum](https://forum.free5gc.org/t/authentication-method-eap-aka-not-working/2260) or the message `SEMANTICALLY_INCORRECT_MESSAGE` when seting up UERANSIM's UE after configuring it to use EAP-AKA-PRIME as authentication method on Webconsole, check the solution below: