feat: Update website format

doc/Gemfile

@@ -1,7 +1,25 @@
-# Gemfile
+source "https://rubygems.org"
 
-source 'https://rubygems.org'
+# To upgrade, run `bundle update github-pages`.
+gem "github-pages", group: :jekyll_plugins
+# If you have any plugins, put them here!
+group :jekyll_plugins do
+  #gem "jekyll-feed", "~> 0.12"
+end
 
-gem "jekyll", "~> 4.2"
+# Windows and JRuby does not include zoneinfo files, so bundle the tzinfo-data gem
+# and associated library.
+platforms :mingw, :x64_mingw, :mswin, :jruby do
+  gem "tzinfo", "~> 1.2"
+  gem "tzinfo-data"
+end
 
-gem "minima", git: "https://github.com/jekyll/minima"
+# Performance-booster for watching directories on Windows.
+gem "wdm", "~> 0.1.1", :platforms => [:mingw, :x64_mingw, :mswin]
+
+# Lock `http_parser.rb` gem to `v0.6.x` on JRuby builds since newer versions of the gem
+# do not have a Java counterpart.
+gem "http_parser.rb", "~> 0.6.0", :platforms => [:jruby]
+
+# Used for locally serving the website.
+gem "webrick", "~> 1.7"