docs: added a code example with linking and tagging

README.md

@@ -26,6 +26,7 @@ Fingerprint is a device intelligence platform offering 99.5% accurate visitor id
 - [Requirements](#requirements)
 - [Installation](#installation)
 - [Getting started](#getting-started)
+- [Linking and tagging information](#linking-and-tagging-information)
 - [Caching strategy](#caching-strategy)
 - [Error handling](#error-handling)
 - [API Reference](#api-reference)
@@ -187,6 +188,29 @@ export default App;
 
 See the full code example in the [examples folder](https://github.com/fingerprintjs/fingerprintjs-pro-react/tree/main/examples/create-react-app).
 
+## Linking and tagging information
+The visitorId provided by Fingerprint Identification is especially useful when combined with information you already know about your users, for example, account IDs, order IDs, etc. To learn more about various applications of the linkedId and tags, see [Linking and tagging information](https://dev.fingerprint.com/docs/tagging-information).
+
+Associate your data with a visitorId using the linkedId or tag parameter of the options that are passed into the `useVisitorData()` hook:
+```jsx
+// ...
+
+function App() {
+  const {
+    isLoading,
+    error,
+    getData
+  } = useVisitorData({
+    linkedId: "user_1234",
+    tag: {
+      userAction: "login",
+      analyticsId: "UA-5555-1111-1"
+    }
+  });
+
+// ...
+```
+
 ## Caching strategy
 
 Fingerprint Pro usage is billed per API call. To avoid unnecessary API calls, it is a good practice to cache identification results. By default, the SDK uses `sessionStorage` to cache results.