add lincese section (#14)

kazupon · yyx990803 · commit be1e856bf67c · 2016-06-06T10:01:43.000-04:00
diff --git a/README.md b/README.md
@@ -130,3 +130,7 @@ $ npm test       # run test suite with coverage report
 $ npm run dev    # watch and build dist/vuefire.js
 $ npm run build  # build dist/vuefire.js and vuefire.min.js
 ```
+
+## License
+
+[MIT](http://opensource.org/licenses/MIT)
