docs: update

README.md

@@ -4,12 +4,11 @@
 [![](https://img.shields.io/badge/marketplace-check--pr--ci-blueviolet?style=flat-square)](https://github.com/marketplace/actions/check-pr-ci)
 [![](https://img.shields.io/github/v/release/actions-cool/check-pr-ci?style=flat-square&color=orange)](https://github.com/actions-cool/check-pr-ci/releases)
 
-
 Check the PR CI status and perform some operation after success or failure.
 
 Since CI execution takes time, this Action only support `schedule` trigger.
 
-## How to use?
+## 🍭 How to use?
 
 ```yml
 name: Check PR CI