update readme

Author: sebffischer

README.Rmd

@@ -28,7 +28,6 @@ Deep Learning with torch and mlr3.
 [![Lifecycle: experimental](https://img.shields.io/badge/lifecycle-experimental-orange.svg)](https://lifecycle.r-lib.org/articles/stages.html#experimental)
 [![r-cmd-check](https://github.com/mlr-org/mlr3torch/actions/workflows/r-cmd-check.yml/badge.svg)](https://github.com/mlr-org/mlr3torch/actions/workflows/r-cmd-check.yml)
 [![CRAN status](https://www.r-pkg.org/badges/version/mlr3torch)](https://CRAN.R-project.org/package=mlr3torch)
-[![StackOverflow](https://img.shields.io/badge/stackoverflow-mlr3-orange.svg)](https://stackoverflow.com/questions/tagged/mlr3)
 [![Mattermost](https://img.shields.io/badge/chat-mattermost-orange.svg)](https://lmmisld-lmu-stats-slds.srv.mwn.de/mlr_invite/)
 <!-- badges: end -->
 

README.md

@@ -15,7 +15,6 @@ experimental](https://img.shields.io/badge/lifecycle-experimental-orange.svg)](h
 [![r-cmd-check](https://github.com/mlr-org/mlr3torch/actions/workflows/r-cmd-check.yml/badge.svg)](https://github.com/mlr-org/mlr3torch/actions/workflows/r-cmd-check.yml)
 [![CRAN
 status](https://www.r-pkg.org/badges/version/mlr3torch)](https://CRAN.R-project.org/package=mlr3torch)
-[![StackOverflow](https://img.shields.io/badge/stackoverflow-mlr3-orange.svg)](https://stackoverflow.com/questions/tagged/mlr3)
 [![Mattermost](https://img.shields.io/badge/chat-mattermost-orange.svg)](https://lmmisld-lmu-stats-slds.srv.mwn.de/mlr_invite/)
 <!-- badges: end -->