Added preprint info

README.md

@@ -8,6 +8,10 @@ The (work in progress) documentation about DATS can be found at [readthedocs](ht
 
 The material in this repository is distributed under [CC BY-SA 3.0](http://creativecommons.org/licenses/by-sa/3.0/) license.
 
+## DATS Pre-print
+
+A preprint on "DATS: the data tag suite to enable discoverability of datasets" can be found at: [bioRxiv DOI: 10.1101/103143 ](https://doi.org/10.1101/103143 )
+
 ## Version 2.1 - [![DOI](https://zenodo.org/badge/doi/10.5281/zenodo.62024.svg)](http://dx.doi.org/10.5281/zenodo.62024)
 
 The document provides links to the different appendices files.