Add blackduck badge

Author: nickavv

README.md

@@ -1,3 +1,6 @@
-# Black Duck CoPilot NPM/Travis CI Example
+# Black Duck CoPilot npm/Travis CI Example
 
-[![Travis CI](https://travis-ci.org/BlackDuckCoPilot/example-npm-travis.svg?branch=master)](https://travis-ci.org/BlackDuckCoPilot/example-npm-travis)
+[![Travis CI](https://travis-ci.org/BlackDuckCoPilot/example-npm-travis.svg?branch=master)](https://travis-ci.org/BlackDuckCoPilot/example-npm-travis) [![Black Duck Security Risk](https://copilot-valid.blackducksoftware.com/github/groups/BlackDuckCoPilot/locations/example-npm-travis/public/results/branches/validation/badge-risk.svg)](https://copilot-valid.blackducksoftware.com/github/groups/BlackDuckCoPilot/locations/example-npm-travis/public/results/branches/validation)
+
+This branch shows a working setup for Black Duck CoPilot's validation server.
+An example for public use can be found [here](https://github.com/BlackDuckCoPilot/example-npm-travis).