update readme and gradio version

README.md

@@ -4,7 +4,7 @@ emoji: 😻
 colorFrom: gray
 colorTo: green
 sdk: gradio
-sdk_version: 3.19.1
+sdk_version: 3.34.0
 app_file: app.py
 pinned: false
 license: mit

app.py

@@ -53,7 +53,9 @@ with gr.Blocks() as demo:
     It usually takes 5-10 seconds to process a diagram with this demo.
     Check the options to run [MolScribe](https://huggingface.co/spaces/yujieq/MolScribe) and [OCR](https://huggingface.co/spaces/tomofi/EasyOCR) (it will take a longer time, of course).
 
-    Code: https://github.com/thomas0809/RxnScribe
+    Paper: [RxnScribe: A Sequence Generation Model for Reaction Diagram Parsing](https://pubs.acs.org/doi/10.1021/acs.jcim.3c00439)
+    
+    Code: [https://github.com/thomas0809/RxnScribe](https://github.com/thomas0809/RxnScribe)
 
     Authors: [Yujie Qian](mailto:yujieq@csail.mit.edu), Jiang Guo, Zhengkai Tu, Connor W. Coley, Regina Barzilay. _MIT CSAIL_.
     """)