docs(installation): add example for intellisense in ui prop

docs/content/1.getting-started/2.installation.md

@@ -85,6 +85,19 @@ Also, the extension won't work when writing classes in your `app.config.ts` by d
 }
 ```
 
+You can also add the following to your `settings.json` to enable IntelliSense when using the `ui` prop:
+
+```json [settings.json]
+{
+  "tailwindCSS.classAttributes": [
+    "class",
+    "className",
+    "ngClass",
+    "ui"
+  ]
+}
+```
+
 ## Options
 
 | Key                      | Default                | Description                                      |