Small update to the release doc
Small update to the release doc

kevintanhongann/groovy-website,webkaz/groovy-website,marc0der/groovy-website,marcoVermeulen/groovy-website,marcoVermeulen/groovy-website,groovy/groovy-website,webkaz/groovy-website,groovy/groovy-website,marc0der/groovy-website,kevintanhongann/groovy-website