Updated the build link from travis to actions page

README.md

@@ -3,7 +3,7 @@
 </p>
 
 <a href="https://github.com/ankidroid/Anki-Android/releases"><img src="https://img.shields.io/github/v/release/ankidroid/Anki-Android" alt="release"/></a>
-<a href="https://travis-ci.org/github/ankidroid/Anki-Android"><img src="https://img.shields.io/travis/ankidroid/Anki-Android" alt="build"/></a>
+<a href="https://github.com/ankidroid/Anki-Android/actions"><img src="https://img.shields.io/github/checks-status/ankidroid/Anki-Android/master?label=build" alt="build"/></a>
 <a href="https://opencollective.com/ankidroid"><img src="https://img.shields.io/opencollective/all/ankidroid" alt="Open Collective backers and sponsors"/></a>
 <a href="https://github.com/ankidroid/Anki-Android/issues"><img src="https://img.shields.io/github/commit-activity/m/ankidroid/Anki-Android" alt="commit-activity"/></a>
 <a href="https://github.com/ankidroid/Anki-Android/network/members"><img src="https://img.shields.io/github/forks/ankidroid/Anki-Android" alt="forks"/></a>