I've ranted about this far too often.
If you want to support Citra either use the donation information on the website (which I personally can't recommend) OR donate to developers directly (which is not a donation to the project, but will still show appreciation for the individual developer).
It's your responsibility to figure out where to put your money. In the past couple of years, hundreds of people were involved in the making of Citra. Splitting money is a complicated task, so you should do it for us. If the project receives money it will just sit in a bank account - so the money is essentially wasted at this point. For this (and other) reasons there won't be an official project Patreon account either.
Try to figure out who does what / how much / if they even want a donation etc.
If you can't figure out who to donate for I recommend spending to Wikipedia (knowledge related and everybody uses it), EFF (protecting developers and digital rights) or AGDQ/SGDQ (gaming related).
I'm happy about donations to me, but please read my entire Patreon campaign to make sure you are not donating to a wrong cause. My work is focused mostly on graphics emulation / debugging and user experience + community tasks + anything emu-politics related. I'll focus on Xbox emulation again soon so I'm not sure how much time I'll spend on Citra the next couple of months - currently I'm doing exams at Uni so I don't have much time anyway.
That said, I intend to finish all my started Citra work (including Geomety Shaders if nobody does it before I get the chance)