Add mechanism to test links at dev machine

CONTRIBUTING.md

@@ -21,6 +21,16 @@ We appreciate and recognize all contributors.
 * If you want to add more than one link, please don't do all PR on the exact same line, it usually results in conflicts and your PR cannot be automatically merged...
 * Please contribute links to packages/projects you have used or are familiar with. This will help ensure high-quality entries.
 
+## Test your change locally
+
+#### Prerequisite
+
+Ruby 2.0+
+
+#### Verify checks as:
+```
+$ make test
+```
 
 ## Quality standard
 

Makefile

@@ -0,0 +1,9 @@
+awesome_bot:
+	@which awesome_bot > /dev/null; if [ "$$?" != 0 ]; then \
+	 	echo "'awesome_bot' gem not found. Installing it ..."; \
+	 	gem install awesome_bot; \
+	 fi
+
+.PHONY: test
+test: awesome_bot
+	awesome_bot README.md --allow-redirect --white-list linkedin.com,blog.kcluster.io,telepresence.io,kismatic.com,slideshare.net,research.google.com,kubespray.io,twitter.com --allow-dupe