See alternative package JSON3

[skip ci]

Author: PallHaraldsson

README.md

@@ -1,6 +1,6 @@
 # JSON.jl
 
-This package provides for parsing and printing JSON in pure Julia.
+This package provides for parsing and printing JSON in pure Julia. See also alternative package [JSON3.jl](https://github.com/quinnj/JSON3.jl).
 
 [![Build Status](https://github.com/JuliaIO/JSON.jl/workflows/CI/badge.svg)](https://github.com/JuliaIO/JSON.jl/actions/workflows/CI.yml?query=branch%3Amaster)
 [![codecov.io](http://codecov.io/github/JuliaIO/JSON.jl/coverage.svg?branch=master)](http://codecov.io/github/JuliaIO/JSON.jl?branch=master)