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

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