Fix arg markup in :delstyle help section.
Fix arg markup in :delstyle help section.

Kjwon15/dactyl,airodactyl/dactyl,zklinger/vimperator-labs,nathyong/dactyl,moonshadow/dactyl,nathyong/dactyl,madand/pentadactyl-pm,moonshadow/dactyl,madand/pentadactyl-pm,airodactyl/dactyl,airodactyl/airodactyl,5digits/dactyl,nullren/vimperator-labs,moonshadow/dactyl,nathyong/dactyl,madand/pentadactyl-pm,seanmorton/vimperator-labs,airodactyl/dactyl,moonshadow/dactyl,airodactyl/dactyl,5digits/dactyl,airodactyl/dactyl,nathyong/dactyl,5digits/dactyl,mcarton/vimperator-labs,invl/dactyl,seanmorton/vimperator-labs,invl/dactyl,stemar94/vimperator-labs,madand/pentadactyl-pm,invl/dactyl,Evidlo/vimperator-labs,Kjwon15/dactyl,5digits/dactyl,derenio/vimperator-labs,Kjwon15/dactyl,invl/dactyl,5digits/dactyl,paretje/vimperator-labs,moonshadow/dactyl,Evidlo/vimperator-labs,stemar94/vimperator-labs,Kjwon15/dactyl,Quicksaver/vimperator-labs,madand/pentadactyl-pm,Sheile/vimperator-labs,nathyong/dactyl,5digits/dactyl,Kjwon15/dactyl,Kjwon15/dactyl,Sheile/vimperator-labs,invl/dactyl,airodactyl/dactyl,airodactyl/airodactyl,mcarton/vimperator-labs,invl/dactyl,derenio/vimperator-labs,nullren/vimperator-labs,madand/pentadactyl-pm,Quicksaver/vimperator-labs,nathyong/dactyl,moonshadow/dactyl,zklinger/vimperator-labs,paretje/vimperator-labs