Add CII Badge to README.md

Change-Id: I523d002ee61ae557dca4953f2b3733a5b9ab3da3
Signed-off-by: Christopher Ferris <[email protected]>

Author: christo4ferris

README.md

@@ -8,6 +8,7 @@ This project is an _Active_ Hyperledger project. For more information on the his
 the [Hyperledger Project Lifecycle document](https://wiki.hyperledger.org/community/project-lifecycle).
 
 [![Build Status](https://jenkins.hyperledger.org/buildStatus/icon?job=fabric-merge-x86_64)](https://jenkins.hyperledger.org/view/fabric/job/fabric-merge-x86_64/)
+[![CII Best Practices](https://bestpractices.coreinfrastructure.org/projects/955/badge)](https://bestpractices.coreinfrastructure.org/projects/955)
 [![Go Report Card](https://goreportcard.com/badge/github.com/hyperledger/fabric)](https://goreportcard.com/report/github.com/hyperledger/fabric)
 [![GoDoc](https://godoc.org/github.com/hyperledger/fabric?status.svg)](https://godoc.org/github.com/hyperledger/fabric)
 [![Documentation Status](https://readthedocs.org/projects/hyperledger-fabric/badge/?version=latest)](http://hyperledger-fabric.readthedocs.io/en/latest/?badge=latest)