Update app.py

app.py

@@ -40,18 +40,19 @@ with gr.Blocks(
     with gr.Sidebar(visible=False):
         gr.HTML("<div style='text-align:center;overflow:hidden;'><h3>&#128211; PDF Summarizer &#128211;</h3></div>")
         gr.HTML("<br>")
+        # load sweet alert module from cdn
         gr.HTML("""
         <script src='https://cdn.jsdelivr.net/npm/sweetalert2@11.15.10/dist/sweetalert2.all.min.js'></script>
         <link href='https://cdn.jsdelivr.net/npm/sweetalert2@11.15.10/dist/sweetalert2.min.css' rel='stylesheet'>
         """)
         
-        # Button with JS Event
+        # Button with Javascript Event
         gr.HTML("""
         <button onclick="Swal.fire({
                                 title: 'How To Use',
                                 text: 'Enter your Gemini API key, upload PDF document, select summary kind, then hit the summarize button',
                                 icon: 'info'});" 
-            style="padding: 10px; background-color: #4CAF50; color: white; border: none; border-radius: 5px; cursor: pointer;">
+            style="padding: 10px; background-color: black; color: white; border: none; border-radius: 5px; cursor: pointer;text-align:center;">
             Info
         </button>
         """)