style: add summary at top; move mascot to right

Author: allison-truhlar

src/content/docs/getting-started/quick-start.mdx

@@ -17,7 +17,9 @@ import lightZarrConversion from '@assets/task-images/light-zarr-conversion-reque
 import darkZarrConversion from '@assets/task-images/dark-zarr-conversion-request.png'
 import mascot from '@assets/mascot/fg-starting-line.png'
 
-<img src={mascot.src} alt="Fileglancer mascot" style="width: 150px; margin: 0 auto 2rem; display: block;" />
+<img src={mascot.src} alt="Fileglancer mascot" style="width: 150px; float: right; margin: 0 0 1rem 1rem;" />
+
+This quick start guide will help you get up and running with Fileglancer in just a few minutes. We'll cover the essential steps to navigate the interface, access your data, view OME-Zarr images, and request file conversions.
 
 ## Access Fileglancer