update badge for CI (#510)

README.md

@@ -4,7 +4,7 @@
 
 | **Documentation**                                                               | **Build Status**                                                                                |
 |:-------------------------------------------------------------------------------:|:-----------------------------------------------------------------------------------------------:|
-| [![][docs-stable-img]][docs-stable-url] | [![][travis-img]][travis-url]  [![][codecov-img]][codecov-url] |
+| [![][docs-stable-img]][docs-stable-url] | [![][gh-actions-img]][gh-actions-url]  [![][codecov-img]][codecov-url] |
 
 ## Installation
 
@@ -15,8 +15,8 @@
 [docs-stable-img]: https://img.shields.io/badge/docs-stable-blue.svg
 [docs-stable-url]: https://JuliaDebug.github.io/JuliaInterpreter.jl/stable
 
-[travis-img]: https://travis-ci.org/JuliaDebug/JuliaInterpreter.jl.svg?branch=master
-[travis-url]: https://travis-ci.org/JuliaDebug/JuliaInterpreter.jl
+[gh-actions-img]: https://github.com/JuliaDebug/JuliaInterpreter.jl/actions/workflows/CI.yml/badge.svg
+[gh-actions-url]: https://github.com/JuliaDebug/JuliaInterpreter.jl/actions/workflows/CI.yml
 
 [codecov-img]: https://codecov.io/gh/JuliaDebug/JuliaInterpreter.jl/branch/master/graph/badge.svg
 [codecov-url]: https://codecov.io/gh/JuliaDebug/JuliaInterpreter.jl