Update README.md

Author: thuetter

README.md

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+[![DOI](https://zenodo.org/badge/442127073.svg)](https://zenodo.org/badge/latestdoi/442127073)
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 # jedi-datasets
 
 This repository contains the experimental data for JSON similarity lookups that are published in the following publication:
@@ -47,4 +49,4 @@ The following datasets are included:
 - trees
 - twitter
 - twitter2
-- virus
+- virus