Assuming this new person is the sysadmin-web developer, adds information to onboard a web developer.

See merge request tpo/tpa/wiki-replica!10

Assuming this new person is the sysadmin-web developer, this page has to reflect where in Tor web dev work they should be. This is a start.

I keep looking for it in howto/ldap and not finding it. this should
help at least a little.

I didn't move the doc/accounts documentation here because I'm not sure
yet I want to operate this migration, see also team#40129

Stumbled upon this in
tpo/tpa/team#31350

This is a nice to have, but it's definitely something we're still
interested in helping people with.

here we explain the command we'll run on a separate line for those
diagonal-readers.

The rationale here is that's already available at the head of the
Python script, and was actually not directly tested recently. I only
put this together from memory (well, git history and guesses) so it
might actually not work at all. It's mostly pseudo-code, and shouldn't
be ran directly.

Instead, explain generally, with words, what the script does.

We keep the pager / disaster stuff at the end of the section so it's
easier to find.

Add instructions for changing branch names

See merge request tpo/tpa/wiki-replica!9

We'd this in MRs CI:

    /bin/bash: line 131: git: command not found

Doh.

Explain how to send the signed challenge to change the sudo password

See merge request tpo/tpa/wiki-replica!8

This moves a some documentation out to a better onboarding scenario,
which points to each individual page for specific procedures

I do this because i keep getting lost in the pages. At least now at
the top there will be a pointer to a ticket which has the full list
and identifies the problems clearly.