Update app.py

app.py

@@ -282,11 +282,12 @@ footer {
 acknowledgment_md = """
 ### Acknowledgment
 <div class="image-container">
-    <p> We thank <a href="https://www.kaggle.com/" target="_blank">Kaggle</a>, <a href="https://mbzuai.ac.ae/" target="_blank">MBZUAI</a>, <a href="https://www.anyscale.com/" target="_blank">AnyScale</a>, and <a href="https://huggingface.co/" target="_blank">HuggingFace</a> for their <a href="https://lmsys.org/donations/" target="_blank">sponsorship</a>. </p>
-    <img src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Kaggle_logo.png/400px-Kaggle_logo.png" alt="Image 1">
-    <img src="https://mma.prnewswire.com/media/1227419/MBZUAI_Logo.jpg?p=facebookg" alt="Image 2">
-    <img src="https://docs.anyscale.com/site-assets/logo.png" alt="Image 3">
-    <img src="https://huggingface.co/datasets/huggingface/brand-assets/resolve/main/hf-logo-with-title.png" alt="Image 4">
+    <p> We thank <a href="https://www.kaggle.com/" target="_blank">Kaggle</a>, <a href="https://mbzuai.ac.ae/" target="_blank">MBZUAI</a>, <a href="https://www.anyscale.com/" target="_blank">AnyScale</a>, <a href="https://www.a16z.com/" target="_blank">a16z</a>, and <a href="https://huggingface.co/" target="_blank">HuggingFace</a> for their generous <a href="https://lmsys.org/donations/" target="_blank">sponsorship</a>. </p>
+    <img src="https://upload.wikimedia.org/wikipedia/commons/thumb/7/7c/Kaggle_logo.png/400px-Kaggle_logo.png" alt="Kaggle">
+    <img src="https://mma.prnewswire.com/media/1227419/MBZUAI_Logo.jpg?p=facebookg" alt="MBZUAI">
+    <img src="https://docs.anyscale.com/site-assets/logo.png" alt="AnyScale">
+    <img src="https://a16z.com/wp-content/themes/a16z/assets/images/opegraph_images/corporate-Yoast-Twitter.jpg" alt="a16z">
+    <img src="https://huggingface.co/datasets/huggingface/brand-assets/resolve/main/hf-logo-with-title.png" alt="HuggingFace">
 </div>
 """