added note about requiring a version when using the gradle `pactPublish` task
added note about requiring a version when using the gradle `pactPublish` task

algra/pact-jvm,DiUS/pact-jvm,Fitzoh/pact-jvm,Fitzoh/pact-jvm,flaregames/pact-jvm,olga-vasylchenko/pact-jvm,DiUS/pact-jvm,algra/pact-jvm