Update README.md

Signed-off-by: Gabriel Duke <gabeduke@gmail.com>

Author: gabeduke

README.md

@@ -2,7 +2,7 @@
 
 A simple wrapper for Go's command execution packages.
 
-`go get github.com/alexellis/go-execute`
+`go get github.com/alexellis/go-execute/pkg/v1`
 
 ## Docs