Switch to "main". Closes #550.

Author: juliasilge

README.Rmd

@@ -17,7 +17,7 @@ knitr::opts_chunk$set(
 
 <!-- badges: start -->
 [![R-CMD-check](https://github.com/tidymodels/parsnip/workflows/R-CMD-check/badge.svg)](https://github.com/tidymodels/parsnip/actions)
-[![Coverage status](https://codecov.io/gh/tidymodels/parsnip/branch/master/graph/badge.svg)](https://codecov.io/github/tidymodels/parsnip?branch=master)
+[![Coverage status](https://codecov.io/gh/tidymodels/parsnip/branch/main/graph/badge.svg)](https://codecov.io/github/tidymodels/parsnip?branch=main)
 [![CRAN status](https://www.r-pkg.org/badges/version/parsnip)](https://CRAN.R-project.org/package=parsnip)
 [![Downloads](https://cranlogs.r-pkg.org/badges/parsnip)](https://CRAN.R-project.org/package=parsnip)
 [![lifecycle](https://img.shields.io/badge/lifecycle-stable-brightgreen.svg)](https://lifecycle.r-lib.org/articles/stages.html)

README.md

@@ -7,7 +7,7 @@
 
 [![R-CMD-check](https://github.com/tidymodels/parsnip/workflows/R-CMD-check/badge.svg)](https://github.com/tidymodels/parsnip/actions)
 [![Coverage
-status](https://codecov.io/gh/tidymodels/parsnip/branch/master/graph/badge.svg)](https://codecov.io/github/tidymodels/parsnip?branch=master)
+status](https://codecov.io/gh/tidymodels/parsnip/branch/main/graph/badge.svg)](https://codecov.io/github/tidymodels/parsnip?branch=main)
 [![CRAN
 status](https://www.r-pkg.org/badges/version/parsnip)](https://CRAN.R-project.org/package=parsnip)
 [![Downloads](https://cranlogs.r-pkg.org/badges/parsnip)](https://CRAN.R-project.org/package=parsnip)