For reproducibility, include a Manifest.toml file with all examples.

[ablaom]

It is unrealistic to expect examples, as they proliferate, will be kept up-to-date with the packages they use (including MLJ).

Please, let us give each script (notebook) in examples/ its own directory, and include a Manifest.toml we know to be compatible. When an example is updated, so is the Manifest.

At present we will also need to include the Project.toml; its seems that you cannot directly instantiate a lone Manifest.toml (JuliaLang/Pkg.jl#1091).

I believe the correct code to add to the header of each script, to ensure the accompanying Manifest.tom is instantiated, is:

using Pkg
Pkg.activate(@__DIR__)
Pkg.instantiate()