add unit test badge

Author: KosherJava

README.md

@@ -68,6 +68,7 @@ __While I did my best to get accurate results, please double check before relyin
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 [![GitHub release (latest SemVer)](https://img.shields.io/github/v/release/KosherJava/zmanim?color=eed6af&label=KosherJava&logo=github)](https://search.maven.org/artifact/com.kosherjava/zmanim)
 [![GitHub](https://img.shields.io/github/license/KosherJava/zmanim?color=eed6af&logo=gnu)](https://github.com/KosherJava/zmanim/blob/master/LICENSE)
+[![GitHub last commit](https://img.shields.io/github/last-commit/KosherJava/zmanim?logo=github)](https://github.com/KosherJava/zmanim/commits/master)
 [![CodeQL](https://github.com/KosherJava/zmanim/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/KosherJava/zmanim/actions/workflows/codeql-analysis.yml)
+[![Run unit tests](https://github.com/KosherJava/zmanim/actions/workflows/pull_request_worklow.yml/badge.svg)](https://github.com/KosherJava/zmanim/actions/workflows/pull_request_worklow.yml)
 [![Snyk Vulnerabilities for GitHub Repo](https://img.shields.io/snyk/vulnerabilities/github/KosherJava/zmanim?logo=snyk)](https://security.snyk.io/vuln/maven?search=KosherJava)
-[![GitHub last commit](https://img.shields.io/github/last-commit/KosherJava/zmanim?logo=github)](https://github.com/KosherJava/zmanim/commits/master)