change run button color && update markdown text

app.py

@@ -188,6 +188,22 @@ if __name__ == "__main__":
     body {background-color: white; color: black;}
     .gradio-container {background-color: white; color: black;}
     .gr-file, .gr-image {background-color: #f0f0f0; color: black; border-color: black;}
+
+    /* Custom styles for the run button */
+    .run-button {
+        background-color: #ffb714; /* Button color */
+        color: black; /* White text color */
+        border: none; /* Remove border */
+        padding: 10px 20px; /* Add some padding */
+        font-size: 16px; /* Increase font size */
+        cursor: pointer; /* Change cursor to pointer */
+        border-radius: 5px; /* Add rounded corners */
+        transition: background-color 0.3s ease; /* Smooth transition */
+    }
+
+    .run-button:hover {
+        background-color: #e6a600; /* Darker shade on hover */
+    }
     """
 
     with gr.Blocks(css=css) as demo:
@@ -216,10 +232,10 @@ if __name__ == "__main__":
             </div>
             <div style="margin-bottom:20px; color: black;">
                 <ol style="list-style:none; padding-left:0;">
-                    <li>1. Upload your `.h5ad` file</li>
+                    <li>1. Upload your `.h5ad` file or select one of the default datasets (subset of 10x pbmc data)</li>
                     <li>2. Select the species</li>
                     <li>3. Click "Run" to view the UMAP scatter plot</li>
-                    <li>4. Download the UMAP coordinates</li>
+                    <li>4. Download the UCE embeddings and predicted cell-types</li>
                 </ol>
             </div>
             <div style="text-align:left; line-height:1.8; color: black;">