better text and spinner

app.py

@@ -176,14 +176,15 @@ def predict(inp):
 
 # STREAMLIT
 
-uploader = st.file_uploader('Upload your portrait here',type=['jpg','jpeg','png'])
+uploader = st.file_uploader('Wait the demo file to be rendered and upload your favourite image here.',type=['jpg','jpeg','png'])
 
 if uploader is not None:
     pil_image = Image.open(uploader)
 else:
     pil_image = Image.open('119_image.png')
-pil_scaled, pil_depth, html_string = predict(pil_image)
-
+    
+with st.spinner("Waiting for the predictions..."):
+    pil_scaled, pil_depth, html_string = predict(pil_image)
 components.html(html_string)
 #st.markdown(html_string, unsafe_allow_html=True)