docker/handlers: add comments to describe node healing
docker/handlers: add comments to describe node healing

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