Update README.md

README.md

@@ -33,7 +33,7 @@ A fast and flexible static site generator built with love by [bep], [spf13], and
 [![Tests on Linux, MacOS and Windows](https://github.com/gohugoio/hugo/workflows/Test/badge.svg)](https://github.com/gohugoio/hugo/actions?query=workflow%3ATest)
 [![Go Report Card](https://goreportcard.com/badge/github.com/gohugoio/hugo)](https://goreportcard.com/report/github.com/gohugoio/hugo)
 
-[Website] | [Installation] | [Documentation] | [Support] | [Contributing] | [Twitter]
+[Website] | [Installation] | [Documentation] | [Support] | [Contributing] | <a rel="me" href="https://fosstodon.org/@gohugoio">Mastodon</a>
 
 ## Overview