[Simh] SIMH files

[Bob Eager]

Hi Bob

I have been using SIMH for years!

I have just updated to 3.11, and I noticed mention of the HP
simulators, but files for those are not in the obvious places. Do we
need to download those from elsewhere?

I also noticed on this page:

 http://simh.trailing-edge.com/

That the link to:

 http://simh.trailing-edge.com/sources/simtoolsv310-0/

doesn't work. I can see a set of tools but that particular directory
isn't there. It's no big deal but I thought you should know.

Once again, thanks for all the work.