add link to StatisticalMeasures.jl from readme

Author: ablaom

README.md

@@ -6,6 +6,9 @@ A Julia package for building production-ready measures (metrics) for statistics
 [![Coverage](https://codecov.io/gh/JuliaAI/StatisticalMeasuresBase.jl/branch/master/graph/badge.svg)](https://codecov.io/github/JuliaAI/StatisticalMeasuresBase.jl?branch=master)
 [![Docs](https://img.shields.io/badge/docs-dev-blue.svg)](https://juliaai.github.io/StatisticalMeasuresBase.jl/dev/)
 
+Related:
+[StatisticalMeasures.jl](https://github.com/JuliaAI/StatisticalMeasuresBase.jl/actions).
+
 
 ## The main idea