Merge pull request #10 from elimisteve/patch-1

README: Use $GOPATH to cd into libsodium-go dir

README.md

@@ -19,7 +19,7 @@ How to build
 For linux, this should be easy since there's pkg-config support. Please make sure libsodium is installed on your system first.
 
 1. `go get -d github.com/GoKillers/libsodium-go`
-2. `cd into the root of libsodium-go`
+2. `cd $GOPATH/src/github.com/GoKillers/libsodium-go`
 3. `./build.sh`
 
 For Windows, we need help here. Do a pull request if you know how to compile this on Windows.