Doc update

Big change, reference idx and text inside text

fix potential bug

Merge branch 'main' of https://huggingface.co/datasets/TomTBT/pmc_open_access_xml

Range reference handling, filling the range

Updated baseline date to 2022-09-03

Bump to 2022-07-01 release

Bump baseline date to latest

Processing of the increments, without duplicate

Added download of increments

Bumped source version to 2022-03-04

Renaming loading script