css/style.css: Use FontFamily 맑은고딕 or 나눔고딕
index.html: Change h2 icon to fa-list-ul
css/style.css: Increase default font-size
Update Gemfile

Require 'wdm' cause 'rbconfig'
// Windows 10 TP Build 9860
// Ruby 2.1.3
==
Please add the following to your Gemfile to avoid polling for changes:
require 'rbconfig'
if RbConfig::CONFIG['target_os'] =~ /mswin|mingw|cygwin/i
gem 'wdm', '>= 0.1.0'
end