The OP cited this web page: https://orgmode.org/manual/Exporting-code-blocks.html
but the link from https://orgmode.org/#docs to the manual eventually leads this web page: https://orgmode.org/manual/Exporting-Code-Blocks.html which is different (note capitalization of "Code" and "Blocks"). I guess that capitalizing the words in the web page URL leaves the outdated page in place. HTH, Chuck
