Update BaseURL for new repo

The repo for the apertis website has been moved to the docs group. This
has required the baseURL to be updated (and will need updating again when
we have www.apertis.org pointing at gitlab pages).

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

config.toml

-baseurl = "https://martyn.pages.apertis.org/wiki-conversion-test/"
+baseurl = "https://docs.pages.apertis.org/apertis-website/"
 title = "Apertis"
 
 theme = "beautifulhugo"