Update README.md

Author: shochdoerfer

README.md

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 [![Build Status](https://github.com/bitExpert/magento2-force-login/workflows/ci/badge.svg?branch=master)](https://github.com/bitExpert/magento2-force-login/actions)
 [![Coverage Status](https://coveralls.io/repos/github/bitExpert/magento2-force-login/badge.svg?branch=master)](https://coveralls.io/github/bitExpert/magento2-force-login?branch=master)
-![Mastodon Follow](https://img.shields.io/mastodon/follow/109408681246972700?domain=https://rheinneckar.social)
+[![Mastodon Follow](https://img.shields.io/mastodon/follow/109408681246972700?domain=https://rheinneckar.social)](https://rheinneckar.social/@bitexpert)
 
 The **Force Login** Module for *Magento® 2* allows you to restrict which pages a visitor is
 able to see. Visitors get redirected to the login page if the page is not marked visitable.