Allow financial contributions

[PaddyMac]

Because I want to support open source and especially support the specific projects I personally feel are important, I would like to be able to make financial contributions -- even if small. Please sign up at https://github.com/sponsors and allow yourself to receive contributions from users who want to support your work.

[wulf7]

A huge thanks to you for open source support! Unfortunately, Russia, where I am living, is not in the list of regions currently supported by "GitHub Sponsors". So the only I can do now is to "Join the waitlist".

Thank you again.