<http://schema.org/description>
"\u524D\u56DE\u306B\u5F15\u304D\u7D9A\u304D\uFF0CEcho Web Framework\u3092\u53D6\u308A\u4E0A\u3052\u307E\u3059\u3002"^^<http://www.w3.org/2001/XMLSchema#string>
<http://gihyo.jp/dev/serial/01/engineer_toolbox/0012>