Update app.py

app.py

@@ -80,7 +80,13 @@ if st.session_state.screen == 0:
     with row1_col1:
         # overview
         st.markdown("<p style='text-align: left; color: black;'>This tool allows you to take a photo with your phone of a <i>Where's Waldo?</i> book page. Using the computer vision model YOLOv8-large, this tool finds Waldo and his friends Wenda, Odlaw, Wizard, and Woof.</p>", unsafe_allow_html=True)
-
+        
+        # purchase option
+        st.markdown("<p style='text-align: center; color: black;'>-<a href='https://www.amazon.com/Wheres-Waldo-Ultimate-Watcher-Collection/dp/1536215112/ref=asc_df_1536215112/?tag=hyprod-20&linkCode=df0&hvadid=496186854683&hvpos=&hvnetw=g&hvrand=13774168920524356768&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9009670&hvtargid=pla-1185030597547&psc=1&mcid=a517c47662b13f96a80fbf3bfe8b30fe&gclid=CjwKCAjwuJ2xBhA3EiwAMVjkVADBaOb87R0kxhnpKqL-S_gJWme0DJJAwSTe-VlUv2p19zZKak3cshoCR34QAvD_BwE'>Purchase the Books</a></p>"", unsafe_allow_html=True)
+        
+        # email          
+        st.markdown("<p style='text-align: center; color: black;'>Email me at <a href=mailto:'Jared.L.Bailey@duke.edu'>Jared.L.Bailey@duke.edu</a></p>", unsafe_allow_html=True) 
+        
         # proceed button
         _, row1a_col1, _ = st.columns([2,1,2])
         with row1a_col1:
@@ -91,9 +97,8 @@ if st.session_state.screen == 0:
         # image of Waldo and his friends
         st.image("/home/user/app/home_page_images/Waldo_Friends.jpg", use_column_width=True)
 
-        # purchase option
-        st.markdown("<a href='https://www.amazon.com/Wheres-Waldo-Ultimate-Watcher-Collection/dp/1536215112/ref=asc_df_1536215112/?tag=hyprod-20&linkCode=df0&hvadid=496186854683&hvpos=&hvnetw=g&hvrand=13774168920524356768&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9009670&hvtargid=pla-1185030597547&psc=1&mcid=a517c47662b13f96a80fbf3bfe8b30fe&gclid=CjwKCAjwuJ2xBhA3EiwAMVjkVADBaOb87R0kxhnpKqL-S_gJWme0DJJAwSTe-VlUv2p19zZKak3cshoCR34QAvD_BwE' style='text-align: center; color: black;'>Purchase the Books</a>", unsafe_allow_html=True)
-        st.markdown("<p style='text-align: center; color: black;'>Email me at <a href='Jared.L.Bailey@duke.edu'>Jared.L.Bailey@duke.edu</a></p>", unsafe_allow_html=True)  
+        
+