Replace #StandWithUkraine banner with badge (#470)

As decided at today's community meeting.

README.md

@@ -1,5 +1,4 @@
-[![Stand With Ukraine](https://raw.githubusercontent.com/vshymanskyy/StandWithUkraine/main/banner2-direct.svg)](https://vshymanskyy.github.io/StandWithUkraine)
-
+[![#StandWithUkraine](https://raw.githubusercontent.com/vshymanskyy/StandWithUkraine/main/badges/StandWithUkraine.svg)](https://vshymanskyy.github.io/StandWithUkraine)
 [![Build Status](https://github.com/cucumber/godog/workflows/test/badge.svg)](https://github.com/cucumber/godog/actions?query=branch%main+workflow%3Atest)
 [![PkgGoDev](https://pkg.go.dev/badge/github.com/cucumber/godog)](https://pkg.go.dev/github.com/cucumber/godog)
 [![codecov](https://codecov.io/gh/cucumber/godog/branch/master/graph/badge.svg)](https://codecov.io/gh/cucumber/godog)