docs: include fingerprint.config.js (#457)

Author: thymikee

website/src/docs/configuration.md

@@ -308,4 +308,13 @@ export default {
 };
 ```
 
-The fingerprint calculation uses [`@expo/fingerprint`](https://docs.expo.dev/versions/latest/sdk/fingerprint/) under the hood.
+The fingerprint calculation uses [`@expo/fingerprint`](https://docs.expo.dev/versions/latest/sdk/fingerprint/) under the hood. This means that you can use advanced configuration through [`fingerprint.config.js` file](https://docs.expo.dev/versions/latest/sdk/fingerprint/#fingerprintconfigjs):
+
+```js
+const config = {
+  sourceSkips: [
+    'ExpoConfigVersions', // omits Android versionCode and iOS buildNumber in fingerprint calculation
+  ],
+};
+module.exports = config;
+```