Update README.md

README.md

@@ -3,7 +3,7 @@
 This repository is intended to accompany our manuscript. For more information please refer to:
  
 Hans-Hermann Wessels\*, Alejandro Méndez-Mancilla\*, Xinyi Guo, Mateusz Legut, Zharko Daniloski, Neville E. Sanjana. (2020) 
-[***Massively parallel Cas13 screens reveal principles for guide RNA design***.](https://doi.org/10.1038/s41587-020-0456-9) *Nature Biotechnology*, in press
+[***Massively parallel Cas13 screens reveal principles for guide RNA design***.](https://doi.org/10.1101/2019.12.27.889089) *Nature Biotechnology*, in press
 
 The archive **Cas13design.tar.gz** entails the software needed to predict Cas13d guide RNA efficiencies on custom target RNA sequences. The software can be downloaded separately and installed following the enclosed Readme.txt file.