kramdown not maruku

Gemfile

@@ -0,0 +1,2 @@
+source 'https://rubygems.org'
+gem 'github-pages'

Gemfile.lock

@@ -0,0 +1,96 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    RedCloth (4.2.9)
+    activesupport (4.1.1)
+      i18n (~> 0.6, >= 0.6.9)
+      json (~> 1.7, >= 1.7.7)
+      minitest (~> 5.1)
+      thread_safe (~> 0.1)
+      tzinfo (~> 1.1)
+    blankslate (2.1.2.4)
+    classifier (1.3.4)
+      fast-stemmer (>= 1.0.0)
+    colorator (0.1)
+    commander (4.1.6)
+      highline (~> 1.6.11)
+    fast-stemmer (1.0.2)
+    ffi (1.9.3)
+    gemoji (1.5.0)
+    github-pages (19)
+      RedCloth (= 4.2.9)
+      jekyll (= 1.5.1)
+      jekyll-mentions (= 0.0.6)
+      jekyll-redirect-from (= 0.3.1)
+      jekyll-sitemap (= 0.3.0)
+      jemoji (= 0.1.0)
+      kramdown (= 1.3.1)
+      liquid (= 2.5.5)
+      maruku (= 0.7.0)
+      rdiscount (= 2.1.7)
+      redcarpet (= 2.3.0)
+    highline (1.6.21)
+    html-pipeline (1.5.0)
+      activesupport (>= 2)
+      nokogiri (~> 1.4)
+    i18n (0.6.9)
+    jekyll (1.5.1)
+      classifier (~> 1.3)
+      colorator (~> 0.1)
+      commander (~> 4.1.3)
+      liquid (~> 2.5.5)
+      listen (~> 1.3)
+      maruku (= 0.7.0)
+      pygments.rb (~> 0.5.0)
+      redcarpet (~> 2.3.0)
+      safe_yaml (~> 1.0)
+      toml (~> 0.1.0)
+    jekyll-mentions (0.0.6)
+      html-pipeline (~> 1.5.0)
+      jekyll (~> 1.4)
+    jekyll-redirect-from (0.3.1)
+      jekyll (~> 1.4)
+    jekyll-sitemap (0.3.0)
+      jekyll (~> 1.4)
+    jemoji (0.1.0)
+      gemoji (~> 1.5.0)
+      html-pipeline (~> 1.5.0)
+      jekyll (~> 1.4)
+    json (1.8.1)
+    kramdown (1.3.1)
+    liquid (2.5.5)
+    listen (1.3.1)
+      rb-fsevent (>= 0.9.3)
+      rb-inotify (>= 0.9)
+      rb-kqueue (>= 0.2)
+    maruku (0.7.0)
+    mini_portile (0.6.0)
+    minitest (5.3.4)
+    nokogiri (1.6.2.1)
+      mini_portile (= 0.6.0)
+    parslet (1.5.0)
+      blankslate (~> 2.0)
+    posix-spawn (0.3.8)
+    pygments.rb (0.5.4)
+      posix-spawn (~> 0.3.6)
+      yajl-ruby (~> 1.1.0)
+    rb-fsevent (0.9.4)
+    rb-inotify (0.9.5)
+      ffi (>= 0.5.0)
+    rb-kqueue (0.2.3)
+      ffi (>= 0.5.0)
+    rdiscount (2.1.7)
+    redcarpet (2.3.0)
+    safe_yaml (1.0.3)
+    thread_safe (0.3.4)
+    toml (0.1.1)
+      parslet (~> 1.5.0)
+    tzinfo (1.2.1)
+      thread_safe (~> 0.1)
+    yajl-ruby (1.1.0)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  github-pages

_config.yml

@@ -3,4 +3,5 @@ url: http://blog.matthewrathbone.com
 name: Matthew Rathbone's website
 description: Blog posts and articles about Hadoop and other things
 paginate: 5
-exclude: ['ideas', 'drafts']
+exclude: ['ideas', 'drafts']
+markdown: kramdown