Fix build badge in readme (#138)

Author: vjik

README.md

@@ -8,7 +8,7 @@
 
 [![Latest Stable Version](https://poser.pugx.org/yiisoft/_____/v)](https://packagist.org/packages/yiisoft/_____)
 [![Total Downloads](https://poser.pugx.org/yiisoft/_____/downloads)](https://packagist.org/packages/yiisoft/_____)
-[![Build status](https://github.com/yiisoft/_____/actions/workflows/build.yml/badge.svg)](https://github.com/yiisoft/_____/actions/workflows/build.yml)
+[![Build status](https://github.com/yiisoft/_____/actions/workflows/build.yml/badge.svg?branch=master)](https://github.com/yiisoft/_____/actions/workflows/build.yml?query=branch%3Amaster)
 [![Code Coverage](https://codecov.io/gh/yiisoft/_____/branch/master/graph/badge.svg)](https://codecov.io/gh/yiisoft/_____)
 [![Mutation testing badge](https://img.shields.io/endpoint?style=flat&url=https%3A%2F%2Fbadge-api.stryker-mutator.io%2Fgithub.com%2Fyiisoft%2F_____%2Fmaster)](https://dashboard.stryker-mutator.io/reports/github.com/yiisoft/_____/master)
 [![Static analysis](https://github.com/yiisoft/_____/actions/workflows/static.yml/badge.svg?branch=master)](https://github.com/yiisoft/_____/actions/workflows/static.yml?query=branch%3Amaster)