[Mediawiki-l] wgExtraNamespaces

[Peter Gerdes]

So I have need to add custom namespaces to my project.  I find tons of
pages that tell me to modify wgExtraNamespages in LocalSettings.php,
however this variable is not given an example config in my file and I
have no idea what the proper format is supposed to be for this.

Can anyone tell me, or give me a link as to how I should format this pref?

Peter