update DOI

README.md

@@ -4,8 +4,7 @@ This data repository will be used to share publicly available data related to th
 
 ***If you find the data useful, support data sharing by referencing both the original source and this repository (use DOI below).***
 
-[![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.268969.svg)](https://doi.org/10.5281/zenodo.268969)
-
+[![DOI](https://zenodo.org/badge/51947303.svg)](https://zenodo.org/badge/latestdoi/51947303)
 
 ## Users
 Original reports and data extracted from those reports are categorized by country. For each country, there is a README file (with basic information about currently available datasets), a data guide, and a place names database. Detailed information on formats can be found in the [data dictionary](data_dictionary.md). If you find a mistake please create an [issue](https://help.github.com/articles/creating-an-issue/) or (preferrably) fix it and submit a [pull request](https://help.github.com/articles/using-pull-requests/).