Add a configure section to the README

README.md

@@ -40,6 +40,24 @@ There are several ways to deploy the UI publicly. Here are two common options:
 1. Fork this repository to create your own version
 2. Configure your Vercel account to deploy the forked repository
 
+## Configuration
+
+There's two ways to configure the UI:
+
+**Create a `local.json` config file**
+
+1. Copy [default.json][def] to a new file in the same folder called
+   `local.json`.
+2. Modify the properties in `local.json` to your preference.
+
+**Environment variables**
+
+1. Check [custom-environment-variables.json][env] for all available environment
+   variables.
+2. Set the desired environment variables when building the UI.
+
+> For advanced configuration options, have a look at the [`node-config`][nco]
+> package.
 
 ## Contributing
 
@@ -63,8 +81,11 @@ The UI is distributed under the terms of GPLv3. See [LICENSE][lic] for details.
 
 [app]: https://app.radicle.xyz
 [con]: ./CONTRIBUTING.md
+[def]: ./config/default.json
+[env]: ./config/custom-environment-variables.json
 [iss]: https://app.radicle.xyz/nodes/seed.radicle.garden/rad:z4V1sjrXqjvFdnCUbxPFqd5p4DtH5/issues
 [lic]: ./LICENSE
+[nco]: https://github.com/node-config/node-config/wiki/Configuration-Files
 [nod]: https://nodejs.org
 [npm]: https://www.npmjs.com
 [pat]: https://app.radicle.xyz/nodes/seed.radicle.garden/rad:z4V1sjrXqjvFdnCUbxPFqd5p4DtH5/patches