docs: remove duplicate test coverage badge

Thanks @robitalec

README.Rmd

@@ -20,7 +20,6 @@ options(timeout = 2000)
 [![Project Status: Active – The project has reached a stable, usable state and is being actively developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.repostatus.org/#active)
 [![R-CMD-check](https://github.com/EMODnet/emodnet.wfs/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/EMODnet/emodnet.wfs/actions/workflows/R-CMD-check.yaml)
 [![Codecov test coverage](https://codecov.io/gh/EMODnet/emodnet.wfs/branch/main/graph/badge.svg)](https://app.codecov.io/gh/EMODnet/emodnet.wfs/tree/main)
-[![Codecov test coverage](https://codecov.io/gh/EMODnet/emodnet.wfs/graph/badge.svg)](https://app.codecov.io/gh/EMODnet/emodnet.wfs)
 [![DOI](https://zenodo.org/badge/DOI/10.14284/679.svg)](https://doi.org/10.14284/679)
 [![Status at rOpenSci Software Peer Review](https://badges.ropensci.org/653_status.svg)](https://github.com/ropensci/software-review/issues/653)
 <!-- badges: end -->

README.md

@@ -11,8 +11,6 @@ developed.](https://www.repostatus.org/badges/latest/active.svg)](https://www.re
 [![R-CMD-check](https://github.com/EMODnet/emodnet.wfs/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/EMODnet/emodnet.wfs/actions/workflows/R-CMD-check.yaml)
 [![Codecov test
 coverage](https://codecov.io/gh/EMODnet/emodnet.wfs/branch/main/graph/badge.svg)](https://app.codecov.io/gh/EMODnet/emodnet.wfs/tree/main)
-[![Codecov test
-coverage](https://codecov.io/gh/EMODnet/emodnet.wfs/graph/badge.svg)](https://app.codecov.io/gh/EMODnet/emodnet.wfs)
 [![DOI](https://zenodo.org/badge/DOI/10.14284/679.svg)](https://doi.org/10.14284/679)
 [![Status at rOpenSci Software Peer
 Review](https://badges.ropensci.org/653_status.svg)](https://github.com/ropensci/software-review/issues/653)