Update README

.gitignore

@@ -0,0 +1 @@
+.idea/*

README.adoc

@@ -1,5 +1,7 @@
 :experimental:
 
+WARNING: This is not complete, despite the instructions working. I have ideas on how to improve this.
+
 == Requirements
 * Magisk 22.1 (older versions not tested)
 * link:https://github.com/Magisk-Modules-Repo/MagiskHidePropsConf#installation[MagiskHide Props Config] module installed
@@ -7,6 +9,17 @@
 - Want to use Linux software? Install Termux.
 * AFWall+ 3.5.1 (older versions not tested)
 
+== Optional requirements
+*  Kernel with "xt_HL.ko" module enabled; netfilter's TTL packet mangling.
+
+NOTE: Testing xt_HL support: +
+1. Launch a terminal emulator. +
+2. ``su`` +
+3. ``iptables --ttl-set`` +
+-> If your custom kernel does not support "--ttl-set", inform them of this repository publically (increase exposure of these instructions).
+
+TIP: link:https://web.archive.org/web/20210423030541/https://forum.xda-developers.com/t/magisk-stock-bypass-tether-restrictions.4262265/[Good reference for enabling xt_HL support].
+
 == Steps
 NOTE: ↵ is the kbd:[Enter / Return] key.
 
@@ -20,8 +33,15 @@ NOTE: ↵ is the kbd:[Enter / Return] key.
 ** Select "New custom prop" with kbd:[n ↵]
 *** `tether_dun_required` kbd:[↵] -> kbd:[0 ↵]
 ** Select boot stage "post-fs-data" kbd:[2 ↵] -> kbd:[y ↵]
-***** "Do you want to reboot now?" -> kbd:[y ↵]
+*** "Do you want to reboot now?" -> kbd:[y ↵]
 
+
+
+NOTE: "xt_HL.ko" method stops TTL problems for WiFi & Mobile connections; only changes TTL to 65 for Tethering since other devices subtract TTL by 1 to get the correct 64 TTL.
+
+."xt_HL.ko" required method
+[%collapsible]
+====
 . Open AFWall+ -> 3 vertical dots (hamburger menu) -> Preferences
 - UI Preferences
 ** Confirm AFWall+ disable -> Enabled
@@ -41,10 +61,10 @@ TIP: Put in "Enter custom script below".
 iptables -t mangle -A POSTROUTING -o wlan+ -j TTL --ttl-set 64
 ip6tables -t mangle -A POSTROUTING -o wlan+ -j HL --hl-set 64
 
-
 iptables -t mangle -A POSTROUTING -o +rmnet+ -j TTL --ttl-set 65
 iptables -t mangle -A POSTROUTING -o rndis+ -j TTL --ttl-set 65
 ip6tables -t mangle -A POSTROUTING -o +rmnet+ -j HL --hl-set 65
 ip6tables -t mangle -A POSTROUTING -o rndis+ -j HL --hl-set 65
 ----
+====