wsh ai example was missing -m flag (#2452)

I got very confused when I naively copy pasted these examples 😅

Author: jpetazzo

docs/docs/gettingstarted.mdx

@@ -132,7 +132,7 @@ You can also download installers directly from our [Downloads page](https://www.
    wsh web open github.com
 
    # Get AI assistance
-   wsh ai "how do I find large files in my current directory?"
+   wsh ai -m "how do I find large files in my current directory?" -s
    ```
 
 3. **Customize Your Layout**