Update README.md

Author: softchris

lessons/01-intro-to-genai/README.md

@@ -42,8 +42,9 @@ In the heart of 1860s London, you are recognized as one of the most skilled mech
 
 Your workbench, the heart of your workshop, is an organized mess.
 
-![London Workshop](https://raw.githubusercontent.com/microsoft/generative-ai-with-javascript/main/lessons/01-intro-to-genai/assets/london.png)
-
+<div>
+  <img width=600 src="https://raw.githubusercontent.com/microsoft/generative-ai-with-javascript/main/lessons/01-intro-to-genai/assets/london.png" alt="London Workshop" />
+</div>
 
 _At the center of the bench lies the torso of a robot—an engineering marvel that has consumed months of effort. Its wooden frame is intricately carved, each joint meticulously designed for smooth movement._