Update app.py

app.py

@@ -1,3 +1,15 @@
 import streamlit as st
 
-st.write("Hi")
+st.write("Hi")
+
+st.file_uploader(label="Upload a JPEG photo", 
+                 type=['jpg'], 
+                 accept_multiple_files=False, 
+                 key=None, 
+                 help='Due to image resolution limitations of the tool, only photos of a single page are expected to produce the intended result', 
+                 on_change=None, 
+                 args=None, 
+                 kwargs=None, 
+                 disabled=False, 
+                 label_visibility="visible"
+                )