Thank you for hosting this jam. We had lots of fun.

Unsurprisingly :D , we (and the community!) have discovered bugs and issues with our game. 

1.  In what circumstances are we allowed to update the released game? (do we have to wait 15 days, can we release a separate version, are bugfixes allowed etc.)
2. Is updating the description allowed? (We would like to add a FAQ section and extra instructions)

Edit: this is my first game jam

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Bugfixes that allow the game to be accessible to more players are allowed. Updating the page with descriptions and screenshots is also allowed. Adding significant new features is handled on a case-by-case basis. Some feature updates that make the game significantly more accessible so that more can complete it and give more complete reviews may be allowed, but it is best to ask.