Nano context highlighting for gmi file

[solderpunk]

Thanks for sharing this, Peteyboy!

Have you seen the nano highlighting at:

https://github.com/yzzyx-network/nanorc/blob/master/gemini.nanorc

?  Just thought I'd point you at it in case it gave you any ideas (I
haven't tested it, no idea if it actually works).  I'm just guessing,
but I think it colours links differently depending on whether or not
they have a label or are just a URL?  Looks like there is a difference
in how it detects pre-formatted content, too.  No idea what, though.

Cheers,
Solderpunk