docs/api: added docs for app create resource.
docs/api: added docs for app create resource.

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