Custom rule and adguard home

@dave14305 thanks a lot! And for those wandering and wondering about AGH not auto starting, which is another issue, a solution is below, NOT the commands in the wiki. The solution is taken from the link below:

https://forum.openwrt.org/t/adguardhome-ipk-autostart-not-working-after-reboot/119274/18

service adguardhome disable
nano /etc/init.d/adguardhome
Change "Start" from 21 to 99 and "Stop" from 89 to 120
service adguardhome enable
reboot