CB-6818 Add license to CONTRIBUTING.md
CB-6818 Add license to CONTRIBUTING.md

rakatyal/Cordova-Registry-Web-Fork,rakatyal/Cordova-Registry-Web-Fork,revolunet/cordova-registry-web,apache/cordova-registry-web,revolunet/cordova-registry-web,revolunet/cordova-registry-web,apache/cordova-registry-web,apache/cordova-registry-web,rakatyal/Cordova-Registry-Web-Fork