update README

README.md

@@ -49,11 +49,13 @@ Refer to the [documentation page](https://jdan.github.io/98.css/) for specific i
 
 ### Developing
 
-First, run `npm install`.
+Clone the repo and run `npm install`.
 
-[`style.css`](https://github.com/jdan/98.css/blob/master/style.css) is where everything happens.
+The core styles are managed in [`gui`](https://github.com/botoxparty/XP.css/tree/master/gui).
 
-You can use `npm start` to start a development environment that will watch for file changes and rebuild 98.css, reloading your browser in the process.
+To create your own theme for the GUI you can extend the core styles. See the XP and 98 [`themes`](https://github.com/botoxparty/XP.css/tree/master/themes)
+
+You can use `npm start` to start a development environment that will watch for file changes and rebuild the files, reloading your browser in the process.
 
 You can run a build manually with `npm run build`. This will write to the `dist/` directory.
 
@@ -65,4 +67,4 @@ Thank you for checking my little project out, I hope it brought you some joy tod
 
 ### License
 
-[MIT](https://github.com/jdan/98.css/blob/master/LICENSE)
+[MIT](https://github.com/botoxparty/XP.css/blob/master/LICENSE)