Add links to current version in README
Add links to current version in README

wumpz/geoserver-manager,geosolutions-it/geoserver-manager,wumpz/geoserver-manager,ahennr/geoserver-manager,ahennr/geoserver-manager,geosolutions-it/geoserver-manager,wumpz/geoserver-manager,ahennr/geoserver-manager,geosolutions-it/geoserver-manager