Update README.md

Author: dridk

README.md

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 # CuteVariant
 
-[![Join the chat at https://gitter.im/labsquare/CuteVariant](https://badges.gitter.im/labsquare/CuteVariant.svg)](https://gitter.im/labsquare/CuteVariant?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)![travis](https://travis-ci.org/labsquare/CuteVariant.svg?branch=devel)[![Build status](https://ci.appveyor.com/api/projects/status/nq2xhr5ea7a34oek/branch/devel?svg=true)](https://ci.appveyor.com/project/dridk/cutevariant/branch/devel)
+[![Join the chat at https://gitter.im/labsquare/CuteVariant](https://user-images.githubusercontent.com/7288322/34429117-c74dbd12-ecb8-11e7-896d-46369cd0de5b.png)](https://discord.gg/FwDuY6f)![travis](https://travis-ci.org/labsquare/CuteVariant.svg?branch=devel)[![Build status](https://ci.appveyor.com/api/projects/status/nq2xhr5ea7a34oek/branch/devel?svg=true)](https://ci.appveyor.com/project/dridk/cutevariant/branch/devel)
 
 A GUI tool to filter genomic variations.