chore: collect the url of the image

app.py

@@ -1,5 +1,9 @@
 import streamlit as st
 import tensorflow as tf
 
-x = st.slider("Select a value")
-st.write(x, "squared is", x * x)
+image_url = st.text_input(
+	label="URL of image",
+	value="",
+	placeholder="https://your-favourite-image.png"
+)
+st.write("Image URL:", image_url)