bio_data_guide

better editing bare links `https://...` in *.qmd with `<>`(i.e., `<https://...>`) than old pre-render.qmd regex; here only needed once with `dir_data <- here(datasets/...)` not later when path dir_data used as prefix `glue("{dir_data}/...")`; #288

last bit of cleanup

add here to write statements

adjusting all file calls to use here

loading here library