[README] Add tslint-clean-code to list of community rules (#3539)
[README] Add tslint-clean-code to list of community rules (#3539)


JoshuaKGoldberg/tslint,palantir/tslint,andy-ms/tslint,JoshuaKGoldberg/tslint,andy-hanson/tslint,palantir/tslint,andy-hanson/tslint,JoshuaKGoldberg/tslint,mprobst/tslint,palantir/tslint,mprobst/tslint,mprobst/tslint,andy-ms/tslint,andy-hanson/tslint,andy-ms/tslint