GROOVY-9528: improve "Property: parser" subsection title
GROOVY-9528: improve "Property: parser" subsection title

paulk-asert/incubator-groovy,paulk-asert/incubator-groovy,paulk-asert/incubator-groovy,apache/incubator-groovy,apache/groovy,apache/incubator-groovy,paulk-asert/groovy,apache/groovy,paulk-asert/incubator-groovy,apache/groovy,apache/incubator-groovy,apache/groovy,paulk-asert/groovy,paulk-asert/groovy,paulk-asert/groovy,paulk-asert/incubator-groovy,apache/incubator-groovy