Add donate via PayPal button

[jerome-h-dev]

Resolves #918

NOTE
Requires a valid PayPal link to replace https://example.com placeholder

PREVIEW

[jerome-h-dev]

Happy to add link to PR if provided

[ChristopherHX]

Only individual paypal links can be found across this project.

• MCMrarm/mrarm (Admin) The creator and maintainer till mid 2020 (paypal link documented there https://github.com/MCMrARM/mbp2018-bridge-drv/blob/b43fcc069da73e051072fde24af4014c9c487286/README.md?plain=1#L11)
• Me (Admin) current Maintainer, initial experimental 64bit ports are from my side 2019-current (My paypal link is documented here Just wanted to say thanks, Donate? ChristopherHX/runner.server#200 (comment))
• Thanks to @GameParrot for multiple bug fixes and game update patches not having any known paypal link for me

No collective donations are organized in any way

Current state of this project from my side if it is not completely broken don't fix it. Xbox live related stuff is fragile.

[MCMrARM]

Please do not donate to me regarding this project as I do not do any active work with it.

[ChristopherHX]

We can close this as no response from pr author, going forward I may or not create an opencollective account for this github organization

I develop this app for free for now and that only due to mrarm's original work, I would have never started this from scatch thats for shure