[Documentation] Broken Links on Problem format specification Page

[qwedc001]

related: #2652 #2653
I found more.

https://www.domjudge.org/docs/manual/8.3/problem-format.html
https://www.domjudge.org/docs/manual/8.2/index.html

The above link wrote: The base of the format is the ICPC problem package specification. with a broken link which is fixed on main document.

Seems that a patch needs to be applied to older documents.

[qwedc001]

Also out of curiosity,is the newer version of 2023-07-draft format stable now?Or we're still going to wait for it?

[vmcj]

Also out of curiosity,is the newer version of 2023-07-draft format stable now?Or we're still going to wait for it?

When we release we'll consider changing it in the released tarball. But when there is still -draft in the version I would assume CLICS hasn't finalized the version yet.

[vmcj]

See: #2870 #2871