Update README.md

Author: c4milo

README.md

@@ -1,5 +1,5 @@
 # GoVMX
-[![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/hooklift/govmx?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/hooklift/govmx?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![GoDoc](https://godoc.org/github.com/hooklift/govmx?status.svg)](https://godoc.org/github.com/hooklift/govmx)
 [![Build Status](https://travis-ci.org/hooklift/govmx.svg?branch=master)](https://travis-ci.org/hooklift/govmx)