Added reference to Jenkins PMD plugin for priority mapping.
Added reference to Jenkins PMD plugin for priority mapping.

HaStr/kieker,HaStr/kieker,leadwire-apm/leadwire-javaagent,HaStr/kieker,kieker-monitoring/kieker,kieker-monitoring/kieker,HaStr/kieker,leadwire-apm/leadwire-javaagent,kieker-monitoring/kieker,kieker-monitoring/kieker,kieker-monitoring/kieker,HaStr/kieker