resources: Add SFG-01 Music BIOS reference manual.
hgignore: Ignore node_modules.
msx_io_ports: Document pause inhibit flag in turboR I/O port A7H.

Thanks to Daemos.
msxsystemvars: Document CHGCPU temporary stack pointer location.

Thanks to Daemos.
msx_io_ports: Add MIDI-PAC.
msx_io_ports: Add expanded I/O WORP3 registration.
psg_sample/yamaha_ym2164: Some MathML presentation & fallback improvements.
msxbios: Dutch, spelling, capitalisation, box-drawings and links.
getslot: Add GETSLT: Get slot ID of any page article.

It is quite a commonly used routine, but the examples in the official
documentation are often hard-coded for page 1 and need to be adapted by the
programmer if they need a different page. This implementation works for all
pages, and also includes a detailed explanation.
jvc-midi/msx_io_ports: Add documentation for JVC MSX MIDI interface.

Thanks go to gflorez for providing port and divider information.
z80instr: Correct a few instruction lengths.

Thanks to Néstor Sancho for reporting. The instruction size column didn’t seem
to have gotten the attention it needs, so double-checked everything and also
corrected a few more 🙂.
index: Correct changelog link.
sources: Update link to Konamiman’s sources.
Update links to MAP repository.
links: Update link to Glass.
resources: Add MSX Expansion I/O port manual (a.k.a. Switched I/O ports).
resources: Add (preliminary) to V9978 datasheet.
resources: Add V9990 datasheet.
msx_io_ports: Improve documentation on the F4 system flags register.

Thanks to Peter Hanraets for pointing out an error which prompted the rewrite.
msxbios: According to the MSX Datapack, 17AH and 17DH are named RDRES and WRRES.

See MSX Datapack Vol. 2 page 625-626.