fix badge

README.md

@@ -4,7 +4,7 @@
 [![R build status](https://github.com/ropensci/lingtypology/workflows/R-CMD-check/badge.svg)](https://github.com/ropensci/lingtypology/actions)
 [![Coverage Status](https://img.shields.io/codecov/c/github/ropensci/lingtypology/master.svg)](https://codecov.io/github/ropensci/lingtypology?branch=master)
 
-[![CRAN version](http://www.r-pkg.org/badges/version/lingtypology)](https://cran.r-project.org/package=lingtypology)
+[![CRAN version](https://www.r-pkg.org/badges/version/lingtypology)](https://cran.r-project.org/package=lingtypology)
 [![](http://cranlogs.r-pkg.org/badges/grand-total/lingtypology)](https://CRAN.R-project.org/package=lingtypology)
 [![](https://badges.ropensci.org/95_status.svg)](https://github.com/ropensci/onboarding/issues/95)
 [![Research software impact](http://depsy.org/api/package/cran/lingtypology/badge.svg)](http://depsy.org/package/r/lingtypology)