Input file format comments

[ytakemon]

1. This page discusses qtl2 package, but have not connected the relationship between the other qtl2 sub-libraries that has been mentioned in the last 2 episodes such as: qtl2geno, qtl2convert, and qtl2db. Is qtl2 interchangeable with gtl2geno? Is the future aim to have a bunch of qtl2 sub-libraries to be housed under qtl2, so that when you load qtl2 you would load all the sub-libraries? This part should be explained or to be consistent just load qtl2.

[smcclatchy]

@ytakemon - the different sublibraries are now explained in the introduction.
mapping/_episodes/01-introduction.md

I hope that this clarifies things a bit better; perhaps you have suggestions for how we could approach this when we teach next week.