While template properties exist generally for you to define and use as in your own markdown sources, Pamflet also checks for a special, optional property that links to a project’s GitHub repository.
If you define a github property with the repo owner and name,
Pamflet constructs a link to the repository. For example:
github=n8han/pamflet
This is the property that produces the link to GitHub from Pamflet’s own documentation. Note that there is only one slash.