docs(installer): #32 add automatic installation to quick start

docs/index.mdx

@@ -9,7 +9,38 @@ Content Collections transforms your content into type-safe data collections, pro
 
 ### Installation
 
-Content Collection supports most of the major web frameworks. Choose the one you are using to get started.
+Content Collection supports most major web frameworks. You can install it [automatically](#automatic-installation-experimental) (currently experimental) or [manually](#manual-installation).
+
+#### Automatic Installation (experimental)
+
+<Callout type="warn">
+Automatic installation is experimental and may not work for every project.
+Please ensure you have committed your latest changes before running the installation.
+
+If you encounter any issues, create a [ticket](https://github.com/sdorra/content-collections/issues) and use the manual installation.
+</Callout>
+
+Content collections can be installed automatically using the `content-collections` package.
+The automatic installation currently supports the following frameworks:
+
+-  Next.js
+-  Remix
+-  Qwik
+-  SvelteKit
+-  SolidStart
+-  Vite
+
+To install Content Collections automatically, run the following command in your project's directory:
+
+```bash
+npx content-collections install
+```
+
+The setup will guide you through the installation process and execute the necessary steps to configure Content Collections for your project.
+
+#### Manual Installation
+
+ Choose the one you are using to get started.
 
 <QuickStartList />