Fix minor programming guide bugs, add programming guide lit tests to CI workflows

[hunhoffe]

This PR:

• Fixes broken examples in the programming guide which were introduced by a recent PR
• Fixes a few broken links in the repo
• Improves formatting in a few places in the programming guide
• Moves existing programming guide lit tests to the run_makefile.lit format
• Adds an additional lit test or two (some of these are quite trivial, but at least ensure the code builds & runs)
• Adds ninja check-programming-guide to github CI workflows.

[fifield]

Thanks! Can you also add ninja check-programming-guide to buildAndTestRyzenAI.yml?

[hunhoffe]

Thanks! Can you also add ninja check-programming-guide to buildAndTestRyzenAI.yml?

@fifield Added! I thought it was most appropriate to add the check to the build-examples job in that file, but if I should add it to the build-tests job in that file as well, let me know!

[jgmelber]

Thanks for adding lit testing to the rest of the guide and the cleanups!

[abisca]

This looks great! Thank you for working on this!