Merge pull request #202 from gitter-badger/gitter-badge

Add a Gitter chat badge to README.md

Author: ctrueden

README.md

@@ -5,3 +5,6 @@ plugin framework, with an extensible mechanism for service discovery, backed
 by its own annotation processor, so that plugins can be loaded dynamically.
 It is used by both [ImageJ](https://github.com/imagej/imagej) and
 [SCIFIO](https://github.com/scifio/scifio).
+
+
+[![Join the chat at https://gitter.im/scijava/scijava-common](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/scijava/scijava-common?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)