fix typo in CONTRIBUTING.md (#3979)
fix typo in CONTRIBUTING.md (#3979)


openaddresses/openaddresses,sergiyprotsiv/openaddresses,mmdolbow/openaddresses,orangejulius/openaddresses,openaddresses/openaddresses,mmdolbow/openaddresses,mmdolbow/openaddresses,orangejulius/openaddresses,slibby/openaddresses,slibby/openaddresses,openaddresses/openaddresses,orangejulius/openaddresses,slibby/openaddresses,sergiyprotsiv/openaddresses,sergiyprotsiv/openaddresses