feat: Add note about audio compatibility with Safari

main.py

@@ -122,6 +122,8 @@ description = """
   <strong>Convert any PDF into a podcast episode! Experience research papers, websites, and more in a whole new way.</strong>
   <br>
   <a href="https://github.com/knowsuchagency/pdf-to-podcast">knowsuchagency/pdf-to-podcast</a>
+  <br>
+  <em>Note: audio doesn't work in Safari</em>
 </p>
 """