Add an Interlisp history resources page

[pamoroso]

As suggested in PR #331 and discussed in the March 25, 2026 external meeting, this change adds a new page with links to resources on the history of Interlisp to go under section "History".

[masinter]

This is OK as it is, but I might wish for a little more elaboration on how far we've gotten mining these different repositories for items that we have subsequently added to the Bibliography.

I think with the CHM PARC arcives, we've done a shallow look, as with BitSavers but I'm not sure about others.

[pamoroso]

I've explored Bitsavers quite a bit for Interlisp content.

[stumbo]

This is OK as it is, but I might wish for a little more elaboration on how far we've gotten mining these different repositories for items that we have subsequently added to the Bibliography.

I think with the CHM PARC archives, we've done a shallow look, as with BitSavers but I'm not sure about others.

Maybe add another sentence or two, something along the lines of: "The Medley team uses these sites to reconstruct the history of Interlisp and find artifacts that further define the body of work created by the original teams working on or with Interlisp. If in your exploration you come across material that we may have missed, please make us aware. Also, if you know of other sites that provide historical material related to Interlisp, we would be interested in adding them to our list, so others may take advantage of them."

It sidesteps saying how deep we've mined them but points out that they are relevant to us.

[pamoroso]

Thanks, I've added a note to that effect.