Update README.md

Author: lumaghg

README.md

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 # denomongo-unittest-utils
-[![CI](https://github.com/lumaghg/denomongo-unittest-utils/actions/workflows/testing.yml/badge.svg)](https://github.com/lumaghg/denomongo-unittest-utils/actions/workflows/testing.yml)
+[![CI](https://github.com/lumaghg/denomongo-unittest-utils/actions/workflows/testing.yml/badge.svg)](https://github.com/lumaghg/denomongo-unittest-utils/actions/workflows/testing.yml) 
+[![tag](https://shields.io/github/tag/lumaghg/denomongo-unittest-utils.svg)](https://github.com/lumaghg/denomongo-unittest-utils/releases)  
 Simple [Deno](https://deno.land) Module to provide Spy Mocks for creating Unittests with [mongo](https://deno.land/x/mongo)
 
 ## Purpose