The GitHub Book book-docinfo.xml preface.asciidoc chapter-00-introduction.asciidoc chapter-01-tools.asciidoc chapter-02-gist.asciidoc chapter-03-gollum.asciidoc chapter-04-javascript.asciidoc chapter-05-jekyll.asciidoc chapter-06-hubot-activities.asciidoc chapter-07-android.asciidoc