Updated instructions

Added instructions how to use `ip` and `iptables` when creating an example config

Author: SloCompTech

root/defaults/example/README.md

@@ -67,4 +67,6 @@ Hooks are located in `hook` directory. Please follow hook guidelines:
 - At the top of the script
     - Optionaly copyright notice
     - What this hook does
-    - Setttings with comments and an example settings values
+    - Setttings with comments and an example settings values
+
+**Note:** All hooks run as non-root user so instead of using `ip` and `iptables` use `ovpn-ip` and `ovpn-iptables`.