links to orgcard.pdf and orgcard.txt are broken

[Norwid Behrnd]

Dear maintainers,

both the link to the English reference card as .pdf as well as the
plain ASCII version mentioned on https://orgmode.org/worg/ are
inaccessible.  (Not affected are the English .html and French (.tex,
.pdf)).  At present, the last blue link to access the document
archive.org points to for https://orgmode.org/orgcard.pdf is by May
1st, 2021, compiled for version 7.8.11 (2012).[1]

Best regards.

[1]
https://web.archive.org/web/20210501075407/https://orgmode.org/orgcard.pdf