Update app.py

app.py

@@ -52,8 +52,8 @@ def respond(message, history):
 cfg.description = f'''
                 <table>
                   <tr>
-                      <td style="width: 50%; text-align: left;"> <h1>{cfg.title}</h1> </td>
-                      <td style="width: 50%; text-align: right;"> <img src="https://github.com/david-oplatka/chatbot-streamlit/blob/main/Vectara-logo.png?raw=true"> </td>
+                      <td style="width: 50%; text-align: left; vertical-align: middle;"> <h1>{cfg.title}</h1> </td>
+                      <td style="width: 50%; text-align: right; vertical-align: middle;"> <img src="https://github.com/david-oplatka/chatbot-streamlit/blob/main/Vectara-logo.png?raw=true"> </td>
                   </tr>
                   <tr>
                       <td colspan="2">This demo uses Retrieval Augmented Generation from <a href="https://vectara.com/">Vectara</a> to ask questions about {cfg.source_data_desc}.</td>
@@ -69,7 +69,7 @@ table {
   border-collapse: separate;
 }
 td {
-  vertical-align: top;
+  vertical-align: middle;
   border: none;
 }
 img {