bug#44895: Add Info-copy-permalink

[Stefan Kangas]

Drew Adams <drew.adams@oracle.com> writes:

> If you use Info+ then `G' (`Info-goto-node-web')
> takes you to the Web version of the current node.
>
> It uses function `Info-url-for-node' (also from
> Info+) to get the URL for that.

I think this looks useful for Emacs itself.  A rough attempt at doing
so attached.

Thoughts?

info-goto-web.diff
Description: Binary data