Bioconductor guidelines

[llrs]

In the first chapter there is a Bioconductor gotcha section pointing to the official page. They are replicating the website in a book (following the rOpenSci example) and new changes are added to that book.

Maybe it would be better for people to add a link to the book too.

[maelle]

Oh, excellent point, thank you! Would you have time to make a PR?