closes #3

README.md

@@ -6,7 +6,8 @@
 [![Lifecycle:
      experimental](https://img.shields.io/badge/lifecycle-experimental-orange.svg)](https://lifecycle.r-lib.org/articles/stages.html)
 [![CRAN/METACRAN Total
-   downloads](http://cranlogs.r-pkg.org/badges/grand-total/censobr?color=yellow)](https://CRAN.R-project.org/package=censobr)
+   downloads](http://cranlogs.r-pkg.org/badges/grand-total/censobr?color=yellow)](https://CRAN.R-project.org/package=censobr) [![Codecov test
+coverage](https://codecov.io/gh/ipeaGIT/censobr/branch/main/graph/badge.svg)](https://app.codecov.io/gh/ipeaGIT/censobr?branch=main)
 
 **censobr** is an R package to download data from Brazil's Population Census. The package is built on top of the [Arrow platform](https://arrow.apache.org/docs/r/), which allows users to work with larger-than-memory census data using [{dplyr} familiar functions](https://arrow.apache.org/docs/r/articles/arrow.html#analyzing-arrow-data-with-dplyr).