Mention ReadStatTables.jl in documentation

[junyuan-chen]

I suggest mentioning ReadStatTables.jl instead of StatFiles.jl in the documentation.

Both packages make use of ReadStat. However, StatFiles.jl does not really work well and freezes for files that are moderately large (>100MB?). It is not updated for several years and lacks features for it to be convenient in actual usage scenarios. ReadStatTables.jl has more convenience features, incorporates the development in the Julia data ecosystem and reads files much faster.

[bkamins]

@davidanthoff - what are your plans regarding https://github.com/queryverse/StatFiles.jl maintenance?

We can either mention both in the docs or replace StatFiles.jl with ReadStatTables.jl as @junyuan-chen suggested.

[davidanthoff]

StatFiles.jl still works, and I do have plans to get back to it at some point, so it is not abandoned. ReadStatTables.jl might well have more features, I haven't really looked into that. I'm indifferent whether both packages are mentioned or just one.

I do have some very ambitious plans for Queryverse in general, and at that point StatFiles.jl will be a key part of that. But these are plans, with no timeline, so it might well be quite a while before I go back to that work, right now I'm trying to finish up Juliaup and some VS Code extension stuff :)

[bkamins]

@davidanthoff - I am well aware of your superb work on juliaup and vscode from which the whole community benefits. I will update this PR to reflect the fact that your package is not abandoned.

I have also edited some other relevant entries.

@junyuan-chen - are you OK with the changes?

[junyuan-chen]

@bkamins These changes look good. Thank you!

[bkamins]

Thank you!