docs(installation): add IntelliSense section

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

@@ -38,6 +38,53 @@ As this module installs [@nuxtjs/tailwindcss](https://tailwindcss.nuxtjs.org/) a
 
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+## IntelliSense
+
+If you're using VSCode, you can install the [Tailwind CSS IntelliSense](https://marketplace.visualstudio.com/items?itemName=bradlc.vscode-tailwindcss) extension to get autocompletion for the classes.
+
+You can read more on how to set it up on the [@nuxtjs/tailwindcss](https://tailwindcss.nuxtjs.org/tailwind/editor-support) module documentation, but to summarize, you'll need to add the following to your `settings.json`:
+
+```json [settings.json]
+{
+  "files.associations": {
+      "*.css": "tailwindcss"
+  },
+  "editor.quickSuggestions": {
+      "strings": true
+  }
+}
+```
+
+You can write your `tailwind.config` in TypeScript as such:
+
+```ts [tailwind.config.ts]
+import type { Config } from 'tailwindcss'
+
+export default <Partial<Config>> {
+  content: [
+    'docs/content/**/*.md'
+  ]
+}
+```
+
+If you do so, you'll need to add the following to your `settings.json`:
+
+```json [settings.json]
+{
+  "tailwindCSS.experimental.configFile": "tailwind.config.ts"
+}
+```
+
+Also, the extension won't work when writing classes in your `app.config.ts` by default. You can add the following to your `settings.json` to fix this:
+
+```json [settings.json]
+{
+  "tailwindCSS.experimental.classRegex": [
+    ["ui:\\s*{([^)]*)\\s*}", "[\"'`]([^\"'`]*).*?[\"'`]"]
+  ]
+}
+```
+
 ## Options
 
 | Key                      | Default                | Description                                      |