Update README.md

Author: devmotion

README.md

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 # StochasticDelayDiffEq.jl
 
-[![Build Status](https://travis-ci.com/SciML/StochasticDelayDiffEq.jl.svg?branch=master)](https://travis-ci.com/SciML/StochasticDelayDiffEq.jl)
+
+[![Build Status](https://github.com/SciML/StochasticDelayDiffEq.jl/workflows/CI/badge.svg?branch=master)](https://github.com/SciML/StochasticDelayDiffEq.jl/actions?query=workflow%3ACI%20branch%3Amaster)
 [![codecov](https://codecov.io/gh/SciML/StochasticDelayDiffEq.jl/branch/master/graph/badge.svg)](https://codecov.io/gh/SciML/StochasticDelayDiffEq.jl)
 [![Coverage Status](https://coveralls.io/repos/github/SciML/StochasticDelayDiffEq.jl/badge.svg?branch=master)](https://coveralls.io/github/SciML/StochasticDelayDiffEq.jl?branch=master)