Follow the below mentioned steps to add an organization:
Download the Hyperledger fabric samples.
$ git clone -b master https://github.com/hyperledger/fabric-samples.git
$ cd fabric-samples
Download platform specific binaries
$ curl -sSL https://goo.gl/6wtTN5 | bash -s 1.1.0
Bring the network down:
$ cd fabric-samples/first-network
$ ./byfn.sh -m down
Generate artifacts required and then bring the network up:
$ ./byfn.sh -m generate
$ ./byfn.sh -m up
Bring the new network up:
$ ./eyfn.sh up
That's all