Update license

README.md

@@ -15,6 +15,17 @@ List of available parameters:
 
 - `GATSBY_API_URL`: override api url (defaults to location origin)
 
+## License
+
+Skynet uses a custom [License](./LICENSE.md). The Skynet License is a source
+code license that allows you to use, modify and distribute the software, but
+you must preserve the payment mechanism in the software.
+
+For the purposes of complying with our code license, you can use the
+following Siacoin address:
+
+`fb6c9320bc7e01fbb9cd8d8c3caaa371386928793c736837832e634aaaa484650a3177d6714a`
+
 ## Contributing
 
 ### Testing Your Code