readme: added droid ribbon.
readme: added droid ribbon.

Signed-off-by: Francisco Souza <8d45e0355693b8ec0dbbcdd5571f92a74ecfcbc2@corp.globo.com>

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