z2_row: Add xda thread link

Change-Id: I0b1247769519ac5a38c458f30c7e522f799c9b84
diff --git a/_zuk/zukz2row.markdown b/_zuk/zukz2row.markdown
index 0b6fd4a..141ad39 100644
--- a/_zuk/zukz2row.markdown
+++ b/_zuk/zukz2row.markdown
@@ -7,6 +7,7 @@
 maintainer: cosmedd
 oem: ZUK
 devicetree: https://github.com/TeamWin/android_device_zuk_z2_row
+xdathread: https://forum.xda-developers.com/zuk-z2-pro/development/recovery-official-twrp-zuk-z2-pro-t3714651
 ---
 
 {% include disclaimer.html %}