Fix manpage on configuration lookup order
Fix manpage on configuration lookup order

The lookup order stated in the i3 manpage was is contratiction to the
actual lookup order, which was introduced with commit
https://github.com/i3/i3/commit/bfa12a581915d6a3de182fa6025fce108cac8eab.
Since that commit (6.5 years ago) the "traditional" paths took precedence
over XDG_CONFIG paths.

stapelberg/i3,Airblader/i3-original,cornerman/i3,stapelberg/i3,i3/i3,cornerman/i3,Airblader/i3,Airblader/i3,i3/i3,Airblader/i3-original,Airblader/i3-original,i3/i3,Airblader/i3,stapelberg/i3,Airblader/i3,stapelberg/i3,i3/i3,cornerman/i3,cornerman/i3,Airblader/i3-original,Airblader/i3-original