Man pages matching name text::worddiff::htmltwolines in section 3pm:

Text::WordDiff::HTMLTwoLines.3pm.en	debian 10 / libtext-worddiff-perl
Text::WordDiff::HTMLTwoLines.3pm.en	debian 11 / libtext-worddiff-perl
Text::WordDiff::HTMLTwoLines.3pm.en	debian 12 / libtext-worddiff-perl