Tidy doc as suggested by @sampsyo
Tidy doc as suggested by @sampsyo

Co-authored-by: Adrian Sampson <a1b909ec1cc11cce40c28d3640eab600e582f833@radbox.org>
ibmibmibm/beets,ibmibmibm/beets,beetbox/beets,beetbox/beets,beetbox/beets,ibmibmibm/beets,ibmibmibm/beets,beetbox/beets