update

Author: Reputeless

learn/online-resources/index.html

@@ -1107,9 +1107,11 @@ <h2 id="_5">コーディングガイドライン<a class="headerlink" href="#_5"
 <li><a href="http://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines">C++ Core Guidelines</a> | <a href="https://qiita.com/tetsurom/items/322c7b58cddaada861ff">見出し日本語訳</a></li>
 <li><a href="https://google.github.io/styleguide/cppguide.html">Google C++ Style Guide</a> | <a href="https://ttsuki.github.io/styleguide/cppguide.ja.html">日本語訳</a></li>
 <li><a href="https://llvm.org/docs/CodingStandards.html">LLVM Coding Standards</a></li>
-<li><a href="https://docs.google.com/document/d/e/2PACX-1vRZr-HJcYmf2Y76DhewaiJOhRNpjGHCxliAQTBhFxzv1QTae9o8mhBmDl32CRIuaWZLt5kVeH9e9jXv/pub">Safer Usage Of C++</a></li>
+<li><a href="https://docs.google.com/document/d/e/2PACX-1vRZr-HJcYmf2Y76DhewaiJOhRNpjGHCxliAQTBhFxzv1QTae9o8mhBmDl32CRIuaWZLt5kVeH9e9jXv/pub">Safer Usage Of C++</a><ul>
 <li>Chromium チームによる、C++ の安全性を一層高めるためのガイドライン案</li>
 </ul>
+</li>
+</ul>
 <h2 id="c_1">C++ 規格関連<a class="headerlink" href="#c_1" title="Permanent link">&para;</a></h2>
 <ul>
 <li><a href="https://cppmap.github.io/standardization/working-drafts/">C++ 規格</a></li>