Reformat pattern syntax descriptions as definition list
Reformat pattern syntax descriptions as definition list

There are already three different styles and a fourth will be added.
A definition list is easier to navigate when trying to find the
description of a specific style.

mhubig/borg,RonnyPfannschmidt/borg,RonnyPfannschmidt/borg,raxenak/borg,RonnyPfannschmidt/borg,raxenak/borg,raxenak/borg,edgimar/borg,mhubig/borg,edgimar/borg,edgimar/borg,edgewood/borg,RonnyPfannschmidt/borg,edgewood/borg,edgewood/borg,RonnyPfannschmidt/borg,edgewood/borg,edgimar/borg,mhubig/borg,raxenak/borg