v2.42.0

What's changed

• test(images): follow #760's lone-image picture in image_sources (416876c)
• fix(pptx): DocLang locations measured from the slide's top-left corner (9a4fd41)
• fix(md): a lone image is a picture, with or without an HTML block (#760) (930106f)
• fix(md): autolinks and GFM bare URLs keep their hyperlink (#773) (3432d76)
• fix(table): a merged rich cell repeats in every position it covers (#777) (d0f7200)

Full changelog: v2.41.5...v2.42.0