Added Gitter badge

gitter-badger · rssdev10 · commit bd06f479795a · 2016-12-17T19:41:17.000+03:00
diff --git a/README.md b/README.md
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 ruby4knime
 ==========
 
+[![Join the chat at https://gitter.im/rssdev10/ruby4knime](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/rssdev10/ruby4knime?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
 ## Intro
 Ruby scripting extension for [KNIME](http://knime.org)
 
