dotfiles

Added info about xauth

diff --git a/X11.md b/X11.md
@@ -1,7 +1,12 @@
 # X11
 
-Launch firefox as user without xorg
-.config/X11/xinitrc file should be cleared for this to work, otherwise it would launch i3
 ```
+# Launch firefox as user without xorg
+# .config/X11/xinitrc file should be cleared for this to work, otherwise it would launch i3
 xinit firefox $* -- :0 vt$XDG_VTNR
+
+
+# Configure xauth manually
+# $HOST was not defined in arch, I added it manually when using it
+xauth add ${HOST}:0 . $(xxd -l 16 -p /dev/urandom)
 ```