You start with creating a new project. and you can try one of the following: If you're using Continuous Delivery toolchains,
you should find what you need here:
https://console.ng.bluemix.net/docs/services/ContinuousDelivery/pipeline_working.html
If you're not yet using toolchains, try the previous version of the Delivery Pipeline service documentation:
https://console.ng.bluemix.net/docs/services/DeliveryPipeline/index.html Also you can try to create a new project, connect your gihub account and check the permissions on github's auth page carefully to make sure you grant access to private repos. It's also looks like there still some problems with organisation accounts repositories.