Create merch/partners page

[gbl08ma]

Create a page listing/promoting/identifying authorised third-party JungleTV merch sellers and other trusted/affiliated entities.

Blocked by #42

[gbl08ma]

Moving this to vFuture as it doesn't seem as urgent as it once was. And I feel that the current documents system is probably enough to handle this, we just need to figure out where to place the link(s) to such document.