Update readme badge to point to public CI build (#41970)
Update readme badge to point to public CI build (#41970)


ericstj/corefx,ericstj/corefx,shimingsg/corefx,ericstj/corefx,shimingsg/corefx,ericstj/corefx,shimingsg/corefx,shimingsg/corefx,shimingsg/corefx,shimingsg/corefx,ericstj/corefx,ericstj/corefx,shimingsg/corefx,ericstj/corefx