Update README with user attachments link

Added a link to user attachments in the README.

Author: tilladam

README.md

@@ -2,6 +2,10 @@
 
 A flexible, **generic** Slint component library for building visual graph editors. Supports data flow diagrams, state machines, shader graphs, and any visual node-based interface.
 
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+https://github.com/user-attachments/assets/f2aeba1a-ebdb-4708-9c22-f620084a1bf5
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 ## Key Features
 
 - ✅ **Generic Design** - Works with any node and link data structures
@@ -470,4 +474,4 @@ let cache = tracker.cache(); // Use for hit testing
 
 ## License
 
-Same as Slint framework
+Same as Slint framework