[doc] add actions badge

Author: simogasp

README.md

@@ -43,8 +43,8 @@ Building
 See [INSTALL](INSTALL.md) text file.
 
 Continuous integration:
- - [![Build Status](https://travis-ci.org/alicevision/CCTag.svg?branch=master)](https://travis-ci.org/alicevision/CCTag) [![Build status](https://ci.appveyor.com/api/projects/status/909b01qlixwslvmf?svg=true)](https://ci.appveyor.com/project/AliceVision/cctag) master branch.
- - [![Build Status](https://travis-ci.org/alicevision/CCTag.svg?branch=develop)](https://travis-ci.org/alicevision/CCTag) [![Build status](https://ci.appveyor.com/api/projects/status/909b01qlixwslvmf/branch/develop?svg=true)](https://ci.appveyor.com/project/AliceVision/cctag/branch/develop) develop branch.
+ - [![Build Status](https://travis-ci.org/alicevision/CCTag.svg?branch=master)](https://travis-ci.org/alicevision/CCTag) [![Build status](https://ci.appveyor.com/api/projects/status/909b01qlixwslvmf?svg=true)](https://ci.appveyor.com/project/AliceVision/cctag) ![Continuous Integration](https://github.com/alicevision/CCTag/workflows/Continuous%20Integration/badge.svg?branch=master) master branch.
+ - [![Build Status](https://travis-ci.org/alicevision/CCTag.svg?branch=develop)](https://travis-ci.org/alicevision/CCTag) [![Build status](https://ci.appveyor.com/api/projects/status/909b01qlixwslvmf/branch/develop?svg=true)](https://ci.appveyor.com/project/AliceVision/cctag/branch/develop) ![Continuous Integration](https://github.com/alicevision/CCTag/workflows/Continuous%20Integration/badge.svg?branch=develop) develop branch.
 
 Running
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