Update contributing document
Update contributing document

h3zjp/Cachet,coreation/Cachet,wakermahmud/Cachet,ephillipe/Cachet,anujaprasad/Hihat,coreation/Cachet,coupej/Cachet,ematthews/Cachet,0x73/Cachet,billmn/Cachet,Mebus/Cachet,clbn/Cachet,gm-ah/Cachet,wngravette/Cachet,ematthews/Cachet,eduardocruz/Cachet,gm-ah/Cachet,MatheusRV/Cachet-Sandstorm,NossaJureg/Cachet,SamuelMoraesF/Cachet,everpay/Cachet,g-forks/Cachet,clbn/Cachet,whealmedia/Cachet,elektropay/Cachet,pellaeon/Cachet,bthiago/Cachet,h3zjp/Cachet,murendie/Cachet,karaktaka/Cachet,cachethq/Cachet,elektropay/Cachet,NossaJureg/Cachet,billmn/Cachet,leegeng/Cachet,eduardocruz/Cachet,karaktaka/Cachet,0x73/Cachet,CloudA/Cachet,sapk/Cachet,rogerapras/Cachet,SamuelMoraesF/Cachet,chaseconey/Cachet,coupej/Cachet,alobintechnologies/Cachet,withings-sas/Cachet,Surventrix/Cachet,ephillipe/Cachet,coupej/Cachet,MatheusRV/Cachet-Sandstorm,chaseconey/Cachet,katzien/Cachet,robglas/Cachet,Mebus/Cachet,murendie/Cachet,brianjking/openshift-cachet,withings-sas/Cachet,displayn/Cachet,whealmedia/Cachet,CloudA/Cachet,bthiago/Cachet,sapk/Cachet,ZengineChris/Cachet,rogerapras/Cachet,anujaprasad/Hihat,wakermahmud/Cachet,sapk/Cachet,pellaeon/Cachet,nxtreaming/Cachet,nxtreaming/Cachet,MicroWorldwide/Cachet,cachethq/Cachet,ephillipe/Cachet,MicroWorldwide/Cachet,brianjking/openshift-cachet,SamuelMoraesF/Cachet,pellaeon/Cachet,MatheusRV/Cachet-Sandstorm,bthiago/Cachet,NossaJureg/Cachet,chaseconey/Cachet,n0mer/Cachet,leegeng/Cachet,rogerapras/Cachet,MatheusRV/Cachet-Sandstorm,withings-sas/Cachet,ZengineChris/Cachet,Mebus/Cachet,elektropay/Cachet,anujaprasad/Hihat,alobintechnologies/Cachet,ZengineChris/Cachet,n0mer/Cachet,robglas/Cachet,wakermahmud/Cachet,g-forks/Cachet,murendie/Cachet,MatheusRV/Cachet-Sandstorm,Surventrix/Cachet,karaktaka/Cachet,billmn/Cachet,everpay/Cachet,h3zjp/Cachet,brianjking/openshift-cachet,displayn/Cachet,katzien/Cachet,g-forks/Cachet,wngravette/Cachet,ematthews/Cachet,n0mer/Cachet,eduardocruz/Cachet