Meson examples use wrong way to specify fortran compiler

[Dariqq]

Describe the bug

From the documentation at https://mesonbuild.com/Machine-files.html#binaries I would expect it to be fortran in [binaries] section.

The example cross files at meson/cross/none.txt and meson/cross/arm64cl.txt give the impression that the key is fc

To Reproduce

project(
  'example',
  'fortran',
  version : '0.1',
  meson_version : '>= 1.3.0',
  default_options : ['warning_level=3'],
)

Using fc like the examples suggest raises an error requesting a fortran key

meson.build:1:0: ERROR: 'fortran' compiler binary not defined in cross file [binaries] section

Using fortran works.

Expected behavior

Meson examples to be consisted with documentation and actual behaviour