adding some config instructions

README.md

@@ -26,4 +26,27 @@ Read Bellingcat's article about this project in
 * For more info visit the [original repo](https://github.com/forensic-architecture/timemap)
 
 ## Contributing
-Please check our [issues page](https://github.com/bellingcat/ukraine-timemap/issues) for desired contributions, and feel free to suggest your own. 
+Please check our [issues page](https://github.com/bellingcat/ukraine-timemap/issues) for desired contributions, and feel free to suggest your own. 
+
+## Configurations
+
+<details>
+<summary>Documentation of <a href="config.js">config.js</a> </summary>
+
+* `SERVER_ROOT` - points to the API base address
+* `XXXX_EXT` - points to the respective JSONs of the data, for events, sources, and associations
+* `MAPBOX_TOKEN` - used to load the custom styles
+* `DATE_FMT` and `TIME_FMT` - how to consume the events' date/time from the API
+* `store.app.map` - configures the initial map view and the UX limits
+* `store.app.cluster` - configures how clusters/bubbles are grouped into larger clusters, larger `radius` means bigger cluster bubbles
+* `store.app.timeline` - configure timeline ranges, zoom level options, and default range
+* `store.app.intro` - the intro panel that shows on start
+* `store.app.cover` - configuration for the full page cover, the `description` is a list of markdown entities, can also contain html
+* `store.ui.colors` and `store.ui.maxNumOfColors` are applied to filters, as they are selected
+
+Easiest way to deploy the static files is through 
+* `nvm use 14`
+* `npm run build` (rather: `CI=false npm run build`)
+* copy the files to your server, for example to `/var/www/html`
+
+</details>