api/services: add comments to describe service plans
api/services: add comments to describe service plans

ArxdSilva/tsuru,ArxdSilva/tsuru,tsuru/tsuru,guilhermebr/tsuru,cezarsa/tsuru,tsuru/tsuru,gwmoura/tsuru,ggarnier/tsuru,cezarsa/tsuru,guilhermebr/tsuru,cezarsa/tsuru,ggarnier/tsuru,cezarsa/tsuru,ArxdSilva/tsuru,ggarnier/tsuru,tsuru/tsuru,tsuru/tsuru,gwmoura/tsuru,gwmoura/tsuru,ArxdSilva/tsuru,ggarnier/tsuru,guilhermebr/tsuru,guilhermebr/tsuru