Added myself as author in package.json. Thanks.

package.json

@@ -87,7 +87,8 @@
     "Ludovic Autin <autin@scripps.edu>",
     "Michal Malý <michal.maly@ibt.cas.cz>",
     "Jiří Černý <jiri.cerny@ibt.cas.cz>",
-    "Panagiotis Tourlas <panagiot_tourlov@hotmail.com>"
+    "Panagiotis Tourlas <panagiot_tourlov@hotmail.com>",
+    "Koya Sakuma <koya.sakuma.work@gmail.com>"
   ],
   "license": "MIT",
     "devDependencies": {