Update app.py

app.py

@@ -521,13 +521,13 @@ with gr.Blocks(title = "Hello",
             <a style="color:#cfe7fe; font-size:14pt;" href="https://organoidtracker.org" target="_blank">[website]</a> 
             <a style="color:#cfe7fe; font-size:14pt;" href="https://jvzonlab.github.io/OrganoidTracker/index.html" target="_blank">[github]</a>
             </div>""")
-    gr.HTML("""<h4 style="color:white;"> What is this?:<p> 
+    gr.HTML("""<h4 style="color:white;"> What is this?:<p> </h4>
                     <ul>
                     <li style="color:white;">Test the performance of our pre-trained networks on your data.
                     <li style="color:white;">We implement only the initial cell detection step, but this is a good performance indicator for the other steps.
                     <li style="color:white;">Does not work? OrganoidTracker 2.0 allows for the easy creation of ground truth datasets and training of new neural networks. 
                     <ul>
-                    </h4>""")
+                    """)
 
     #filepath = ""
     with gr.Row():