Add hfviewer architecture card

Embed the hfviewer architecture visualization card in README.md.

README.md

@@ -96,6 +96,16 @@ The architecture incorporates several modern design ideas including:
 The goal was never to reinvent the Transformer.
 The goal was to explore it.
 
+## Architecture graph
+
+<a href="https://hfviewer.com/GODELEV/Rose-Mini?utm_source=huggingface&amp;utm_medium=embedded_model_card&amp;utm_campaign=GODELEV_Rose-Mini_card" target="_blank" rel="noopener">
+  <img
+    src="https://hfviewer.com/api/card.svg?source=GODELEV%2FRose-Mini&amp;granularity=0"
+    alt="Architecture graph for GODELEV/Rose-Mini. Open in hfviewer"
+    width="100%"
+  />
+</a>
+
 ---
 
 # The Four Hour Battle
@@ -243,8 +253,6 @@ Both models were built with different objectives.
 | BananaMind          |           — |                936 | **1037.37 Elo** |
 | ArithMark-2.0       |      29.30% |         **37.37%** |      **29.52%** |
 
-
-
 ---
 
 # Why Rose?
@@ -313,4 +321,4 @@ Although I refuse to make any promises regarding that last point.
 
 Thank you for checking out Rose-Mini.
 
-I hope you enjoy experimenting with it as much as I enjoyed building it.
+I hope you enjoy experimenting with it as much as I enjoyed building it.