Add header image

app.py

@@ -64,7 +64,7 @@ if "output" not in st.session_state:
 
 st.markdown("### Biomedical paper classifier")
 
-st.markdown("<img height=100px src='./header.png'>", unsafe_allow_html=True)
+st.markdown("<img height=100px src='https://huggingface.co/spaces/oracat/PaperClassifier/resolve/main/header.png'>", unsafe_allow_html=True)
 
 
 ## Demo buttons and their callbacks