Add link for donation to help Ukraine protect itself from russian occupants

Author: machulav

README.md

@@ -1,5 +1,13 @@
 # On-demand self-hosted AWS EC2 runner for GitHub Actions
 
+⚠️ If you like the project, please consider [supporting Ukraine](https://supportukrainenow.org) in a [war](https://en.wikipedia.org/wiki/2022_Russian_invasion_of_Ukraine) against russian occupants.
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+[<img src="https://user-images.githubusercontent.com/2857712/156607570-8c9fd15b-8b44-41b3-bec3-312267af324f.png" width="500">](https://supportukrainenow.org)
+
+(image by [Nina Dzyvulska](https://www.behance.net/ninadz))
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+---
+
 [![awesome-runners](https://img.shields.io/badge/listed%20on-awesome--runners-blue.svg)](https://github.com/jonico/awesome-runners)
 
 Start your EC2 [self-hosted runner](https://docs.github.com/en/free-pro-team@latest/actions/hosting-your-own-runners) right before you need it.