oauth2: use the correct import path for urlfetch

Change-Id: Ie8654298c317f3465c225fad25660cdc5e2907cd
Reviewed-on: https://go-review.googlesource.com/9932
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/README.md b/README.md
index a5afeca..b7fc493 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@
 		"golang.org/x/oauth2"
 		"golang.org/x/oauth2/google"
 		newappengine "google.golang.org/appengine"
-		newurlftech "google.golang.org/urlfetch"
+		newurlftech "google.golang.org/appengine/urlfetch"
 
 		"appengine"
 	)