fix CONTRIBUTING.md link and spelling
fix CONTRIBUTING.md link and spelling
sampsyo/beets,sampsyo/beets,shamangeorge/beets,ibmibmibm/beets,beetbox/beets,sampsyo/beets,beetbox/beets,beetbox/beets,jackwilsdon/beets,ibmibmibm/beets,beetbox/beets,jackwilsdon/beets,shamangeorge/beets,sampsyo/beets,ibmibmibm/beets,jackwilsdon/beets,ibmibmibm/beets,jackwilsdon/beets,shamangeorge/beets,shamangeorge/beets