Update README.md

README.md

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 # JuliaCode
 
-This dataset includes all Julia code and some documentation from the libraries in the General registry, and the Julia Base library. 
+This dataset includes all Julia code and some documentation from the libraries in the General registry, and the Julia Base library. The data was collected using [PackageAnalyzer.jl](https://github.com/JuliaEcosystem/PackageAnalyzer.jl).