Add doc to docker:registry-max-try config. Closes #1099
Add doc to docker:registry-max-try config.
Closes #1099

hcxiong/tsuru,jblancett/tsuru,mderaldo/tsuru,gwmoura/tsuru,gwmoura/tsuru,tsuru/tsuru,ggarnier/tsuru,hcxiong/tsuru,guilhermebr/tsuru,firebitsbr/tsuru,tuxmonteiro/tsuru,ArxdSilva/tsuru,cezarsa/tsuru,gciotta/tsuru,ggarnier/tsuru,Endika/tsuru,ArxdSilva/tsuru,firebitsbr/tsuru,4eek/tsuru,cgvarela/tsuru,cgvarela/tsuru,4eek/tsuru,cezarsa/tsuru,kgrvamsi/tsuru,mderaldo/tsuru,RichardKnop/tsuru,tsuru/tsuru,tsuru/tsuru,Endika/tsuru,jblancett/tsuru,RichardKnop/tsuru,Endika/tsuru,firebitsbr/tsuru,RichardKnop/tsuru,cgvarela/tsuru,gciotta/tsuru,jblancett/tsuru,gwmoura/tsuru,ggarnier/tsuru,tsuru/tsuru,tuxmonteiro/tsuru,guilhermebr/tsuru,4eek/tsuru,kgrvamsi/tsuru,gciotta/tsuru,tuxmonteiro/tsuru,guilhermebr/tsuru,guilhermebr/tsuru,kgrvamsi/tsuru,cezarsa/tsuru,hcxiong/tsuru,ggarnier/tsuru,cezarsa/tsuru,ArxdSilva/tsuru,mderaldo/tsuru,ArxdSilva/tsuru