Add generated example

Generated example for model fofr/flux-cross-section.
Prompt: a XSEC exploded illustration of a cyberpunk sports car on white

README.md

@@ -18,6 +18,9 @@ widget:
 - text: a XSEC exploded illustration of a cyberpunk sports car
   output:
     url: images/example_4om0p4gul.png
+- text: a XSEC exploded illustration of a cyberpunk sports car on white
+  output:
+    url: images/example_bngi301gh.png
 
 ---