fixed 3.1.1b text, for w3c#348

index.html

@@ -2066,7 +2066,7 @@ <h4 id="differences_in_vertical_and_horizontal_composition_in_use_of_punctuation
           </ol>
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         <li id="id142">
-          <p its-locale-filter-list="en" lang="en"><span class="character">LEFT CORNER BRACKET "「"</span>, <span class="character">RIGHT CORNER BRACKET "」"</span>, <span class="character">LEFT DOUBLE QUOTATION MARK "“"</span> and <span class="character">RIGHT DOUBLE QUOTATION MARK "”"</span></p>
+          <p its-locale-filter-list="en" lang="en"><span class="character">LEFT CORNER BRACKET "「"</span>, <span class="character">RIGHT CORNER BRACKET "」"</span>, <span class="character">LEFT DOUBLE QUOTATION MARK "“"</span>, <span class="character">RIGHT DOUBLE QUOTATION MARK "”"</span>, <span class="character">LEFT SINGLE QUOTATION MARK "‘"</span> and <span class="character">RIGHT SINGLE QUOTATION MARK "’"</span</p>
           <p its-locale-filter-list="ja" lang="ja"><span class="index" id="d5e447">かぎ括弧</span>（始めかぎ括弧<span class="character">[「] (LEFT CORNER BRACKET)</span>及び終わりかぎ括弧<span class="character">[」] (RIGHT CORNER BRACKET)</span>）と<span class="index" id="d5e456">クォーテーションマーク</span>（左ダブルクォーテーションマーク<span class="character">[“] (LEFT DOUBLE QUOTATION MARK)</span>及び右ダブルクォーテーションマーク<span class="character">[”] (RIGHT DOUBLE QUOTATION MARK)</span>並びに左シングルクォーテーションマーク<span class="character">[‘] (LEFT SINGLE QUOTATION MARK)</span>及び右シングルクォーテーションマーク<span class="character">[’] (RIGHT SINGLE QUOTATION MARK)</span>）</p>
           <ol>
             <li id="id143">