message: update shield syntax
diff: @@ -14,11 +14,11 @@ Intel&reg; Performance Counter Monitor (Intel&reg; PCM) is an application progra
  Current Build Status
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  -- Linux: [![GitHub Workflow Status](https://img.shields.io/github/workflow/status/intel/pcm/Linux%20make/master)](https://github.com/intel/pcm/actions/workflows/linux_make.yml?query=branch%3Amaster)
  +- Linux: [![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/intel/pcm/linux_make.yml?branch=master)](https://github.com/intel/pcm/actions/workflows/linux_make.yml?query=branch%3Amaster)
  - Windows: [![Build status](https://ci.appveyor.com/api/projects/status/github/intel/pcm?branch=master&svg=true)](https://ci.appveyor.com/project/opcm/pcm)
  -- FreeBSD: [![GitHub Workflow Status](https://img.shields.io/github/workflow/status/intel/pcm/FreeBSD%20build/master)](https://github.com/intel/pcm/actions/workflows/freebsd_build.yml?query=branch%3Amaster)
  -- OS X: [![GitHub Workflow Status](https://img.shields.io/github/workflow/status/intel/pcm/Mac%20OS%20X%20build/master)](https://github.com/intel/pcm/actions/workflows/macosx_build.yml?query=branch%3Amaster)
  -- Docker container: [![GitHub Workflow Status](https://img.shields.io/github/workflow/status/intel/pcm/Docker%20Build/master)](doc/DOCKER_README.md)
  +- FreeBSD: [![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/intel/pcm/freebsd_build.yml?branch=master)](https://github.com/intel/pcm/actions/workflows/freebsd_build.yml?query=branch%3Amaster)
  +- OS X: [![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/intel/pcm/macosx_build.yml?branch=master)](https://github.com/intel/pcm/actions/workflows/macosx_build.yml?query=branch%3Amaster)
  +- Docker container: [![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/intel/pcm/docker.yml?branch=master)](doc/DOCKER_README.md)
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  PCM Tools
  