Martyn Welch authored 4 years ago and Emanuele Aina committed 4 years ago

The documentation pulled from developer.apertis.org, which utilises HotDoc
document generation uses a `...` marker at the end of it's leading
metadata whilst Hugo (as used on the website) expects `---`. change
instances of this string.

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>