diff --git a/docs/Gemfile b/docs/Gemfile
index 655775a0546..e89fdcecb3e 100644
--- a/docs/Gemfile
+++ b/docs/Gemfile
@@ -15,3 +15,7 @@
 #
 source 'https://rubygems.org'
 gem 'github-pages'
+
+gem "redcarpet", "~> 3.5"
+
+gem "pygments.rb", "~> 2.2"
diff --git a/docs/Gemfile.lock b/docs/Gemfile.lock
index aaccff9451e..e242d899947 100644
--- a/docs/Gemfile.lock
+++ b/docs/Gemfile.lock
@@ -1,61 +1,283 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    RedCloth (4.2.9)
-    classifier (1.3.3)
-      fast-stemmer (>= 1.0.0)
-    colorator (0.1)
-    commander (4.1.5)
-      highline (~> 1.6.11)
-    fast-stemmer (1.0.2)
-    ffi (1.9.3)
-    github-pages (10)
-      RedCloth (= 4.2.9)
-      jekyll (= 1.3.0)
-      kramdown (= 1.2.0)
-      liquid (= 2.5.4)
-      maruku (= 0.6.1)
-      rdiscount (= 2.1.7)
-      redcarpet (= 2.3.0)
-    highline (1.6.20)
-    jekyll (1.3.0)
-      classifier (~> 1.3)
-      colorator (~> 0.1)
-      commander (~> 4.1.3)
-      liquid (~> 2.5.2)
-      listen (~> 1.3)
-      maruku (~> 0.6.0)
-      pygments.rb (~> 0.5.0)
-      redcarpet (~> 2.3.0)
-      safe_yaml (~> 1.0.4)
-    kramdown (1.2.0)
-    liquid (2.5.4)
-    listen (1.3.1)
-      rb-fsevent (>= 0.9.3)
-      rb-inotify (>= 0.9)
-      rb-kqueue (>= 0.2)
-    maruku (0.6.1)
-      syntax (>= 1.0.0)
-    posix-spawn (0.3.6)
-    pygments.rb (0.5.4)
-      posix-spawn (~> 0.3.6)
-      yajl-ruby (~> 1.1.0)
-    rb-fsevent (0.9.3)
-    rb-inotify (0.9.2)
-      ffi (>= 0.5.0)
-    rb-kqueue (0.2.0)
-      ffi (>= 0.5.0)
-    rdiscount (2.1.7)
-    redcarpet (2.3.0)
-    safe_yaml (1.0.4)
-    syntax (1.0.0)
-    yajl-ruby (1.1.0)
+    activesupport (6.0.4)
+      concurrent-ruby (~> 1.0, >= 1.0.2)
+      i18n (>= 0.7, < 2)
+      minitest (~> 5.1)
+      tzinfo (~> 1.1)
+      zeitwerk (~> 2.2, >= 2.2.2)
+    addressable (2.8.0)
+      public_suffix (>= 2.0.2, < 5.0)
+    coffee-script (2.4.1)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.11.1)
+    colorator (1.1.0)
+    commonmarker (0.17.13)
+      ruby-enum (~> 0.5)
+    concurrent-ruby (1.1.9)
+    dnsruby (1.61.7)
+      simpleidn (~> 0.1)
+    em-websocket (0.5.2)
+      eventmachine (>= 0.12.9)
+      http_parser.rb (~> 0.6.0)
+    ethon (0.14.0)
+      ffi (>= 1.15.0)
+    eventmachine (1.2.7)
+    execjs (2.8.1)
+    faraday (1.6.0)
+      faraday-em_http (~> 1.0)
+      faraday-em_synchrony (~> 1.0)
+      faraday-excon (~> 1.1)
+      faraday-httpclient (~> 1.0.1)
+      faraday-net_http (~> 1.0)
+      faraday-net_http_persistent (~> 1.1)
+      faraday-patron (~> 1.0)
+      faraday-rack (~> 1.0)
+      multipart-post (>= 1.2, < 3)
+      ruby2_keywords (>= 0.0.4)
+    faraday-em_http (1.0.0)
+    faraday-em_synchrony (1.0.0)
+    faraday-excon (1.1.0)
+    faraday-httpclient (1.0.1)
+    faraday-net_http (1.0.1)
+    faraday-net_http_persistent (1.2.0)
+    faraday-patron (1.0.0)
+    faraday-rack (1.0.0)
+    ffi (1.15.3)
+    forwardable-extended (2.6.0)
+    gemoji (3.0.1)
+    github-pages (218)
+      github-pages-health-check (= 1.17.2)
+      jekyll (= 3.9.0)
+      jekyll-avatar (= 0.7.0)
+      jekyll-coffeescript (= 1.1.1)
+      jekyll-commonmark-ghpages (= 0.1.6)
+      jekyll-default-layout (= 0.1.4)
+      jekyll-feed (= 0.15.1)
+      jekyll-gist (= 1.5.0)
+      jekyll-github-metadata (= 2.13.0)
+      jekyll-mentions (= 1.6.0)
+      jekyll-optional-front-matter (= 0.3.2)
+      jekyll-paginate (= 1.1.0)
+      jekyll-readme-index (= 0.3.0)
+      jekyll-redirect-from (= 0.16.0)
+      jekyll-relative-links (= 0.6.1)
+      jekyll-remote-theme (= 0.4.3)
+      jekyll-sass-converter (= 1.5.2)
+      jekyll-seo-tag (= 2.7.1)
+      jekyll-sitemap (= 1.4.0)
+      jekyll-swiss (= 1.0.0)
+      jekyll-theme-architect (= 0.2.0)
+      jekyll-theme-cayman (= 0.2.0)
+      jekyll-theme-dinky (= 0.2.0)
+      jekyll-theme-hacker (= 0.2.0)
+      jekyll-theme-leap-day (= 0.2.0)
+      jekyll-theme-merlot (= 0.2.0)
+      jekyll-theme-midnight (= 0.2.0)
+      jekyll-theme-minimal (= 0.2.0)
+      jekyll-theme-modernist (= 0.2.0)
+      jekyll-theme-primer (= 0.6.0)
+      jekyll-theme-slate (= 0.2.0)
+      jekyll-theme-tactile (= 0.2.0)
+      jekyll-theme-time-machine (= 0.2.0)
+      jekyll-titles-from-headings (= 0.5.3)
+      jemoji (= 0.12.0)
+      kramdown (= 2.3.1)
+      kramdown-parser-gfm (= 1.1.0)
+      liquid (= 4.0.3)
+      mercenary (~> 0.3)
+      minima (= 2.5.1)
+      nokogiri (>= 1.10.4, < 2.0)
+      rouge (= 3.26.0)
+      terminal-table (~> 1.4)
+    github-pages-health-check (1.17.2)
+      addressable (~> 2.3)
+      dnsruby (~> 1.60)
+      octokit (~> 4.0)
+      public_suffix (>= 2.0.2, < 5.0)
+      typhoeus (~> 1.3)
+    html-pipeline (2.14.0)
+      activesupport (>= 2)
+      nokogiri (>= 1.4)
+    http_parser.rb (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jekyll (3.9.0)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
+      em-websocket (~> 0.5)
+      i18n (~> 0.7)
+      jekyll-sass-converter (~> 1.0)
+      jekyll-watch (~> 2.0)
+      kramdown (>= 1.17, < 3)
+      liquid (~> 4.0)
+      mercenary (~> 0.3.3)
+      pathutil (~> 0.9)
+      rouge (>= 1.7, < 4)
+      safe_yaml (~> 1.0)
+    jekyll-avatar (0.7.0)
+      jekyll (>= 3.0, < 5.0)
+    jekyll-coffeescript (1.1.1)
+      coffee-script (~> 2.2)
+      coffee-script-source (~> 1.11.1)
+    jekyll-commonmark (1.3.1)
+      commonmarker (~> 0.14)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-commonmark-ghpages (0.1.6)
+      commonmarker (~> 0.17.6)
+      jekyll-commonmark (~> 1.2)
+      rouge (>= 2.0, < 4.0)
+    jekyll-default-layout (0.1.4)
+      jekyll (~> 3.0)
+    jekyll-feed (0.15.1)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-gist (1.5.0)
+      octokit (~> 4.2)
+    jekyll-github-metadata (2.13.0)
+      jekyll (>= 3.4, < 5.0)
+      octokit (~> 4.0, != 4.4.0)
+    jekyll-mentions (1.6.0)
+      html-pipeline (~> 2.3)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-optional-front-matter (0.3.2)
+      jekyll (>= 3.0, < 5.0)
+    jekyll-paginate (1.1.0)
+    jekyll-readme-index (0.3.0)
+      jekyll (>= 3.0, < 5.0)
+    jekyll-redirect-from (0.16.0)
+      jekyll (>= 3.3, < 5.0)
+    jekyll-relative-links (0.6.1)
+      jekyll (>= 3.3, < 5.0)
+    jekyll-remote-theme (0.4.3)
+      addressable (~> 2.0)
+      jekyll (>= 3.5, < 5.0)
+      jekyll-sass-converter (>= 1.0, <= 3.0.0, != 2.0.0)
+      rubyzip (>= 1.3.0, < 3.0)
+    jekyll-sass-converter (1.5.2)
+      sass (~> 3.4)
+    jekyll-seo-tag (2.7.1)
+      jekyll (>= 3.8, < 5.0)
+    jekyll-sitemap (1.4.0)
+      jekyll (>= 3.7, < 5.0)
+    jekyll-swiss (1.0.0)
+    jekyll-theme-architect (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-cayman (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-dinky (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-hacker (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-leap-day (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-merlot (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-midnight (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-minimal (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-modernist (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-primer (0.6.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-github-metadata (~> 2.9)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-slate (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-tactile (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-theme-time-machine (0.2.0)
+      jekyll (> 3.5, < 5.0)
+      jekyll-seo-tag (~> 2.0)
+    jekyll-titles-from-headings (0.5.3)
+      jekyll (>= 3.3, < 5.0)
+    jekyll-watch (2.2.1)
+      listen (~> 3.0)
+    jemoji (0.12.0)
+      gemoji (~> 3.0)
+      html-pipeline (~> 2.2)
+      jekyll (>= 3.0, < 5.0)
+    kramdown (2.3.1)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
+    liquid (4.0.3)
+    listen (3.6.0)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
+    mercenary (0.3.6)
+    mini_portile2 (2.6.1)
+    minima (2.5.1)
+      jekyll (>= 3.5, < 5.0)
+      jekyll-feed (~> 0.9)
+      jekyll-seo-tag (~> 2.1)
+    minitest (5.14.4)
+    multipart-post (2.1.1)
+    nokogiri (1.12.0)
+      mini_portile2 (~> 2.6.1)
+      racc (~> 1.4)
+    octokit (4.21.0)
+      faraday (>= 0.9)
+      sawyer (~> 0.8.0, >= 0.5.3)
+    pathutil (0.16.2)
+      forwardable-extended (~> 2.6)
+    public_suffix (4.0.6)
+    pygments.rb (2.2.0)
+    racc (1.5.2)
+    rb-fsevent (0.11.0)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    redcarpet (3.5.1)
+    rexml (3.2.5)
+    rouge (3.26.0)
+    ruby-enum (0.9.0)
+      i18n
+    ruby2_keywords (0.0.5)
+    rubyzip (2.3.2)
+    safe_yaml (1.0.5)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sawyer (0.8.2)
+      addressable (>= 2.3.5)
+      faraday (> 0.8, < 2.0)
+    simpleidn (0.2.1)
+      unf (~> 0.1.4)
+    terminal-table (1.8.0)
+      unicode-display_width (~> 1.1, >= 1.1.1)
+    thread_safe (0.3.6)
+    typhoeus (1.4.0)
+      ethon (>= 0.9.0)
+    tzinfo (1.2.9)
+      thread_safe (~> 0.1)
+    unf (0.1.4)
+      unf_ext
+    unf_ext (0.0.7.7)
+    unicode-display_width (1.7.0)
+    zeitwerk (2.4.2)
 
 PLATFORMS
   ruby
 
 DEPENDENCIES
   github-pages
+  pygments.rb (~> 2.2)
+  redcarpet (~> 3.5)
 
 BUNDLED WITH
-   1.10.4
+   1.17.3
diff --git a/docs/_config.yml b/docs/_config.yml
index f1f3bb0f545..c44edd315e7 100644
--- a/docs/_config.yml
+++ b/docs/_config.yml
@@ -3,7 +3,7 @@
 permalink: /:categories/:year/:month/:day/:title
 
 exclude: [".rvmrc", ".rbenv-version", "README.md", "Rakefile", "changelog.md", "vendor", "node_modules", "scss"]
-pygments: true
+highlighter: pygments
 markdown: redcarpet
 redcarpet:
   extensions: ["tables"]
@@ -69,7 +69,7 @@ JB :
   #   http://s3.amazonaws.com/yoursite/themes/watermelon
   #   /assets
   #
-  ASSET_PATH : false
+  ASSET_PATH : /assets/themes/zeppelin/
 
   # These paths are to the main pages Jekyll-Bootstrap ships with.
   # Some JB helpers refer to these paths; change them here if needed.
diff --git a/docs/atom.xml b/docs/atom.xml
index 7ec29339dd6..9517721179b 100644
--- a/docs/atom.xml
+++ b/docs/atom.xml
@@ -1,5 +1,5 @@
 ---
-layout: nil
+layout: null
 title :
 ---
 <?xml version="1.0" encoding="utf-8"?>
diff --git a/docs/rss.xml b/docs/rss.xml
index 8c2a9dd9a8c..dddf9100d27 100644
--- a/docs/rss.xml
+++ b/docs/rss.xml
@@ -1,5 +1,5 @@
 ---
-layout: nil
+layout: null
 title :
 ---