add build status badges to README (#1938)
add build status badges to README (#1938)


hemirt/chatterino2,fourtf/chatterino2,fourtf/chatterino2,Cranken/chatterino2,Cranken/chatterino2,Cranken/chatterino2,Cranken/chatterino2,hemirt/chatterino2,fourtf/chatterino2,hemirt/chatterino2,hemirt/chatterino2