Add Yusuke Kawasaki @kawanet to contributors

Author: samsonjs

Readme.md

@@ -195,6 +195,7 @@ Contributors
 * [Stian Grytøyr](https://github.com/stiang)
 * [TJ Holowaychuk](https://github.com/tj)
 * [w0den](https://github.com/w0den)
+* [Yusuke Kawasaki](https://github.com/kawanet)
 
 
 License

package.json

@@ -23,7 +23,8 @@
     "Sami Samhuri <[email protected]> (https://github.com/samsonjs)",
     "Stian Grytøyr (https://github.com/stiang)",
     "TJ Holowaychuk (https://github.com/tj)",
-    "w0den (https://github.com/w0den)"
+    "w0den (https://github.com/w0den)",
+    "Yusuke Kawasaki (https://github.com/kawanet)"
   ],
   "keywords": ["strftime", "format", "string", "time", "date"],
   "repository": {