Update README.md

README.md

@@ -1,6 +1,10 @@
 # Warm springs alter timing but not total growth of temperate deciduous trees
 
-This repository contains data and code for an analysis by Cameron Dow, soon to be published in *Nature* (DOI: 10.1038/s41586-022-05092-3). A pre-print of an earlier version (prior to peer review) is available here: https://www.researchsquare.com/article/rs-1093360/v1. 
+This repository contains data and code for an analysis by Cameron Dow, soon to be published in *Nature* (DOI: 10.1038/s41586-022-05092-3).
+
+Archive of this GitHub repository in Zenodo: [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.6632090.svg)](https://doi.org/10.5281/zenodo.6632090)  
+
+A pre-print of an earlier version (prior to peer review) is available here: https://www.researchsquare.com/article/rs-1093360/v1. 
 
 ![](doc/manuscript/tables_figures/schematic_summary.png)