doc: update client README to use vendor/

client/README.md

@@ -19,7 +19,7 @@ import (
 	"log"
 	"time"
 
-	"github.com/coreos/etcd/Godeps/_workspace/src/golang.org/x/net/context"
+	"golang.org/x/net/context"
 	"github.com/coreos/etcd/client"
 )