Update installation instructions for Svelte support

Author: abboahene

website/data/overview/installation.mdx

@@ -5,7 +5,7 @@ description: Setting up Zag UI machines in your project
 
 # Getting Started
 
-Zag can be used within most JS frameworks like Vue, React and Solid.
+Zag can be used within most JS frameworks like Vue, React, Svelte and Solid.
 
 To get Zag running, you'll need to:
 
@@ -19,7 +19,7 @@ yarn add @zag-js/tooltip
 ```
 
 2. Install the adapter for the framework of your choice. At the moment, Zag is
-   available for React, Vue 3 and Solid.js. Let's say you use React.
+   available for React, Vue 3, Svelte and Solid.js. Let's say you use React.
 
 ```bash
 npm install @zag-js/react