Combing over the content on your website, I noticed this as well. I find it to be quite charming and most people won’t read the footer text anyway. I’d say: leave it in.
I design (dead tree) books for a living. In the colophon, I always include information about the typefaces I’ve used (font families for print are usually quite costly — $1-3k — so I mention it to gloat about my purchase as well as wanting to give credit where it’s due), the paper it’s printed on (usually FSC certified), and the eco-inks (if used.) I also mention in which country the book is printed.
I don't mention it’s laid out in InDesign on a Mac and that the copy is styled in InCopy — that’s standard. For programming, there are more options. I use BBEdit and Coda, but I respect your choice and I appreciate you letting us know what you use.
I see that too, and the open again behaviour is flaky in Chrome as well - the label switches to say "See More on Github" but the instructions still tell you that's the toggle button, and the link to "Open it again" (which actually toggles) is covered by the overlay but still active.
That's unfortunate, but I understand. If you go to Microsoft's developer page they have a good list of potential Hosts that you can use. I'm sure if Microsoft advertises for them then they are a good choice.