Fixed Markdown syntax

Author: jamiebicknell

README.md

@@ -98,6 +98,6 @@ jQuery(document).ready(function ($) {
 </script>
 ```
 
-##License
+## License
 
 Toggle Switch is licensed under the [MIT license](http://opensource.org/licenses/MIT), see [LICENSE.md](https://github.com/jamiebicknell/Toggle-Switch/blob/master/LICENSE.md) for details.