You can easily edit your GitHub hosted wikis by cloning them to your local machines ( yes, the GitHub Wikis are also backed by Git ) and using your favorite text editor. Alternatively, GitHub open-sourced their Wiki software named Gollum which you can install as a Ruby Gem:
$ gem install gollum
This however will not install some required Gems for editing, because those seem to be considered development dependencies. To install those dependencies, first install the “bundle” Gem:
$ gem install bundler
Then check where your “Gollum”-Gem lies and install the development dependencies using the “bundler”-Gem:
$ gem which gollum /Users/lucas/.rvm/gems/ruby-1.9.2-p180/gems/gollum-1.3.0/lib/gollum.rb $ bundle install /Users/lucas/.rvm/gems/ruby-1.9.2-p180/gems/gollum-1.3.0/ ... ... Your bundle is complete! Use `bundle show [gemname]` to see where a bundled gem is installed.
As you can see I stripped the last part of the path given by
gem which, to the Gem’s root directory.
This should leave you with a working installation of Gollum which supports all the features the GitHub.com Wiki supports. Now navigate to your cloned wiki directory and run: