support traditional (gollum) wiki links

[jpcaruana]

It would be great to be able to add links with the standard notation: [[some-page-slug]]

[quarties]

@jpcaruana TBH I never spotted syntax like this - could you point me to any documentation about this?

Also remember that it's an open-source repository - feel free to work on it on your repo fork and make pull request later :-)

[jpcaruana]

Hi,

this is the way wiki work in github for instance