W3.org downloadable docs error report - https://www.w3.org/TR/WCAG20-TECHS/PDF8.html

Hi,
Re https://www.w3.org/TR/WCAG20-TECHS/PDF8.html

Was on this page today and tried to access the ‘working example of Providing definitions for abbreviations (Open Office) and PDF doc versions. See screenshot attached.
Both files have a doc set-up just fine, but there’s no substantive content, only lorem ipsum.
https://www.w3.org/WAI/WCAG20/Techniques/working-examples/PDF8/headers-definitions.pdf

https://www.w3.org/WAI/WCAG20/Techniques/working-examples/PDF8/headers-definitions.odt

Can you point me towards any content that does address the topic? In particular I’m looking for how to correctly tag acronyms so that they are read out as single letters by a screen reader, rather than read out in full e.g. WHO UN USA etc.
Hope you can help.
Thanks,
Jenny
Jenny Norman
frisson
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