Added contributor

package.json

@@ -11,7 +11,8 @@
   "author": "Sotaro KARASAWA <sotaro.k@gmail.com>",
   "contributors": [
     "Keisuke SATO <riaf@me.com> (http://riaf.jp)",
-    "Shinya Yamaoka <contact@mail.libmacro.com>"
+    "Shinya Yamaoka <contact@mail.libmacro.com>",
+    "Norio Suzuki <norio.suzuki@gmail.com>"
   ],
   "config": {
     "blanket": {