Update readme, put install deps all together

README.md

@@ -102,6 +102,16 @@ The extension uses the following tools, installed in the current GOPATH.  If any
 - goreturns: `go get -u -v sourcegraph.com/sqs/goreturns`
 - gorename: `go get -u -v golang.org/x/tools/cmd/gorename`
 
+To install them just paste and run 
+```bash
+go get -u -v github.com/nsf/gocode
+go get -u -v github.com/rogpeppe/godef
+go get -u -v github.com/golang/lint/golint
+go get -u -v github.com/lukehoban/go-find-references
+go get -u -v sourcegraph.com/sqs/goreturns
+go get -u -v golang.org/x/tools/cmd/gorename
+```
+
 And for debugging:
 
 - delve: Follow the instructions at https://github.com/derekparker/delve/wiki/Building.