How to add link to wiki in gistpad.json

[lkupkepear]

Hi there I am trying to link a repo to its wiki so that I dont have to clone each repos wiki down. In the instructions it lists that I can link a repo to its wiki by adding a gistpad.json file to the repo itself under the .vscode directory. However it does not say what is needed in the gistpad.json file to do this linking.

Example:
Repo is called foo. The wiki for that repo is foo.wiki.git. If I add a gistpad.json in the foo/.vscode directory it will link the wiki to the repo.