Add image links from HF Hub.

Author: ParagEkbote

docs/source/en/using-diffusers/callback.md

@@ -223,9 +223,18 @@ images = pipeline(
 images[0].save("custom_callback_img.png")
 ```
 
-without IPAdapterScaleCutoffCallback
+<div class="flex gap-4">
+  <div>
+    <img class="rounded-xl" src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/without_callback.png" alt="generated image of a tiger sitting in a chair drinking orange juice" />
+    <figcaption class="mt-2 text-center text-sm text-gray-500">without IPAdapterScaleCutoffCallback</figcaption>
+  </div>
+  <div>
+    <img class="rounded-xl" src="https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/diffusers/with_callback2.png" alt="generated image of a tiger sitting in a chair drinking orange juice with ip adapter callback" />
+    <figcaption class="mt-2 text-center text-sm text-gray-500">with IPAdapterScaleCutoffCallback</figcaption>
+  </div>
+</div>
+
 
-with IPAdapterScaleCutoffCallback
 ## Display image after each generation step
 
 > [!TIP]