Remove old docs

Author: curry684

docs/Gemfile

@@ -1,2 +1,12 @@
+ruby '>=2.3.1'
 source 'https://rubygems.org'
-gem 'github-pages', group: :jekyll_plugins
+
+# Middleman
+gem 'middleman', '~>4.2.1'
+gem 'middleman-syntax', '~> 3.0.0'
+gem 'middleman-autoprefixer', '~> 2.7.0'
+gem "middleman-livereload", "~> 3.4.3"
+gem "middleman-sprockets", "~> 4.1.0"
+gem 'rouge', '~> 2.0.5'
+gem 'redcarpet', '~> 3.4.0'
+gem 'nokogiri', '~> 1.6.8'