Fix CI badge

Author: yutailang0119

README.md

@@ -1,6 +1,6 @@
 # GitHub Action for Android Lint
 
-<a href="https://github.com/yutailang0119/action-android-lint/actions"><img alt="action-android-lint status" src="https://github.com/yutailang0119/action-android-lint/workflows/build-test/badge.svg"></a>
+![CI](https://github.com/yutailang0119/action-android-lint/actions/workflows/ci.yml/badge.svg)
 
 This Action generates annotations from
 [Android Lint](https://developer.android.com/studio/write/lint) Report XML.