docs: Improve the Tailwind CSS page (#31681)

Namely, ensuring we mention the support for their Prettier plugins.

Release Notes:

- N/A

docs/src/languages/tailwindcss.md

@@ -1,6 +1,6 @@
 # Tailwind CSS
 
-Tailwind CSS support is built into Zed.
+Zed has built-in support for Tailwind CSS autocomplete, linting, and hover previews.
 
 - Language Server: [tailwindlabs/tailwindcss-intellisense](https://github.com/tailwindlabs/tailwindcss-intellisense)
 
@@ -22,3 +22,14 @@ Languages which can be used with Tailwind CSS in Zed:
 - [PHP](./php.md)
 - [Svelte](./svelte.md)
 - [Vue](./vue.md)
+
+### Prettier Plugin
+
+Zed supports Prettier out of the box, which means that if you have the [Tailwind CSS Prettier plugin](https://github.com/tailwindlabs/prettier-plugin-tailwindcss) installed, adding it to your Prettier configuration will make it work automatically:
+
+```json
+// .prettierrc
+{
+  "plugins": ["prettier-plugin-tailwindcss"]
+}
+```