Add gem version badge (thanks Gemfury)
Add gem version badge (thanks Gemfury)

Mahaswami/netzke-core,citrininfo/netzke-core,citrininfo/netzke-core,Mahaswami/netzke-core,citrininfo/netzke-core,citrininfo/netzke-core,Mahaswami/netzke-core