fix typo
fix typo
fix typo
fix brackets in a sample
fix typo
Merge pull request #2 from rhysd/fix/typo/1

Fix/typo/1
Merge pull request #3 from ncaq/master

constexprの章の誤字の修正
Add GitHub Pages URL in README.
fix typos
Merge pull request #4 from k-takata/fix-typos

fix typos
fix typo.
Explain the type of decltype(e) where e is xvalue.
Fix escape error.
fix typo
Fix variable name
fix typo
fix <pre> area
drop leading/trailing empty line in <pre>
add <pre>
typo fix