Add go-mode into Editor Plugins

README.md

@@ -1286,6 +1286,7 @@ Go software and plugins.
 ## Editor Plugins
 
 * [go-lang-idea-plugin](https://github.com/go-lang-plugin-org/go-lang-idea-plugin) Go plugin for IntelliJ IDEA.
+* [go-mode](https://github.com/dominikh/go-mode.el) - Go mode for GNU/Emacs. 
 * [go-plus](https://github.com/joefitzgerald/go-plus) - Go (Golang) Package For Atom That Adds Autocomplete, Formatting, Syntax Checking, Linting and Vetting
 * [Goclipse](https://github.com/GoClipse/goclipse) - An Eclipse plugin for Go.
 * [gocode](https://github.com/nsf/gocode) - An autocompletion daemon for the Go programming language.