add customise details

readme.md

@@ -1,22 +1,44 @@
 # Volt Tab
-A cool new tab page
+
+A new tab page with bookmark groups and open all controls.
 
 [![voltTab screenshot](asset/screenshot/screenshot-001.gif)](https://zombiefox.github.io/voltTab/)
 
 ## [See the demo in action](https://zombiefox.github.io/voltTab/)
 
----
+* * *
 
 ## Development
 
 When developing use:
-- `npm start`
+
+-   `npm start`
 
 A development server will automatically open the project in your browser. Normally here: `http://localhost:8080`.
 
-
 To build the project use:
-- `npm run build`
+
+-   `npm run build`
 
 A web ready folder will be created in `/dist/web/`.
 A browser addon/extension ready zip will be created in `/dist/extension/`.
+
+## Customise
+
+Edit the [`src/config.js`](src/config.js) file to change the bookmarks, colours and background.
+
+All colours are defined as [HSL](https://developer.mozilla.org/en-US/docs/Web/CSS/color_value/hsl) values in an array. Eg:
+
+A colour defined as:
+
+```
+hsl: [204, 100, 72]
+```
+
+Will be converted to CSS as:
+
+```
+selector {
+  color: hsl(204, 100%, 72%);
+}
+```