Guides: Github integration

Lidoc can automatically add a fork me on Github button on the first page, and link to Github source files (seen in the lower-left corner).

Just invoke Lidoc with --github:

$ lidoc lib/**/*.js --output docs --github rstacruz/lidoc

This links your pages to their corresponding files on Github on the master branch. If you're developing on another branch than master, just pass that in:

$ lidoc lib/**/*.js --output docs --github rstacruz/lidoc --git-branch develop