Update 305-startlevels.md - fix 404 link

[chrisrueger]

I found some broken links in the documentation and trying to fix.

[chrisrueger]

@pkriens Question:

There is a broken link to a non-existing contact.html e.g. /releases/4.0.0/contact.html in the footer of all older releases pages. I think it could be fixed with something like this:

Is this something which should be done? I have the fix ready using a regex search&replace. But it touches almost 5000 files.
Or should older relase files stay untouched?

Another question:
On https://bnd.bndtools.org/releases/4.3.0/chapters/250-resolving.html there is a broken link to /qs/050-start.html

Do you know which could be the correct target url?

[pkriens]

I do not think we should update the files in docs/releases. They are a snapshot copy for archival reasons. Some broken links are to be expected.

[pkriens]

Can you make sure you sign the commit with your email? I cannot merge it without

[chrisrueger]

Can you make sure you sign the commit with your email? I cannot merge it without

Done

[kriegfrj]

Thanks @chrisrueger !