Add Andrew Hussie commentary citation to Homestuck Vol. 6

[towerofnix]

https://hsmusic.wiki/preview-en/album/homestuck-vol-6/

This is pretty easily my favorite album so far [...]

Capture (probably preferred link):
https://web.archive.org/web/20110114120911/http://www.mspaintadventures.com/

Wheals-hosed newspost:
https://wheals.github.io/newsposts/newsposts.html#1/04/11

Courtesy Lilith, via #hsmusic-chat / #issuefication-zone.

[towerofnix]

Crediting source in this newspost we'll probably catch in #573: (boldface mine)

I drew the cover in case you couldn't tell. I have a feeling SOMEBODY out there might ask for a desktop version so before you get all flustered about that, here it is to be adapted to your viewing device however you choose.