Ensure references to other manuals are relative

[fingolfin]

By setting relativePath=../../.. before running makedoc.g

This affects several packages; once we merged this and updated the tags, these packages should get new releases:

• autodoc
• datastructures
• digraphs Use the latest version of gap-actions/build-pkg-docs digraphs/Digraphs#882
• ferret
• fplsa
• primgrp
• smallclassnr
• twistedconjugacy
• utils
• wedderga

[stertooy]

LGTM!

I didn't notice my packages' documentation had links being hardcoded as /home/runner/gap/pkg/.... Whoops.

Was a bit afraid this might interfere with the URL substitution here in update-gh-pages, but that doesn't appear to be the case. Still, might be worth double-checking after making a release.

[fingolfin]

Yeah I recommend we merge this & retag (will do that now) and then do one package test release to see it all works... then one by one... (possibly with dry-runs as well...)

[Joseph-Edwards]

This looks good to me too. That said, I must admit that I'm not 100% clear where the relativePath option that we have specified actually gets used, but that's a me-problem.

[fingolfin]

@Joseph-Edwards This option is passed on to AutoDoc which then uses it to decide on which options to pass to MakeGAPDocDoc

In other news, I tagged this, but did not yet have time to try to make a new release of anything. @stertooy or anyone else, feel free to beat me to it.

[stertooy]

A new version of utils was released, and looking at chap 9 of its online manual, it seems the URL substitution in update-gh-pages still functions as intended. And of course the absolute paths in the actual release are also fixed. :)