add link to paper

streamlit/welcome.py

@@ -2,4 +2,5 @@ import streamlit as st
 
 st.title('Welcome to Medfusion')
 st.text("A latent Denoising Diffusion Probabilistic Model (DDPM) for Medial Image Synthesis")
+st.write("Read more: [Diffusion Probabilistic Models beat GANs on Medical 2D Images](https://arxiv.org/abs/2212.07501)")
 st.image('media/Medfusion.png', channels="RGB", output_format='png')