Documentation on elpa.gnu.org

[Philip Kaludercic]

Hi,

I'd like to link to https://elpa.gnu.org/packages/doc/ and
https://elpa.gnu.org/devel/doc/ from my package README files, to have
some place where I can rely on up-to-date documentation being available.
For Compat, the .../packaged/doc/compat.html link is currently broken,
which is my fault, but I wonder why .../devel/doc/compat.html is out of
date, despite elpa.git being up-to-date
https://git.savannah.gnu.org/cgit/emacs/elpa.git/log/?h=externals/compat.

Also, I am not sure if this is a bug, but
https://elpa.gnu.org/packages/doc/README.html appears to (arbitrarily?)
render the documentation for plz.  I guess this is not intentional.