Create the "all works" overview table (docs/works/index.html)
Source:R/utils_render_table_works.R
create_all_works_table.RdMirrors [create_all_codecheckers_table()]: one row per distinct DOI-keyed work, with its title and its check count. A certificate with no DOI (see [normalize_work_key()]) simply has no work and contributes no row here, per #150.