articles/lang-bidi-use-cases: Fix section boundaries

articles/lang-bidi-use-cases/index.en.html

@@ -148,7 +148,7 @@ <h3 id="example2">Annotated manuscripts</h3>
 <p>Kitayama-san speaks Japanese, so he generally wants to be presented with the 
 Japanese commentary.</p>
 </section>
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@@ -276,8 +276,9 @@ <h3 id="additional_requirements">Additional Requirements for Localization</h3>
 <p>When multiple language representations are possible, a serialization might provide a means (defined in the specification for that document format) for setting a default value for language or direction for the whole of the document. This allows the serialized document to omit language and direction metadata from individual fields in cases where they match the default.</p>
 </section>
 </section>
-</section>
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 <section>
@@ -385,6 +386,9 @@ <h3 id="bidiCase3">Bidirectional text ordering</h3>
 <p>(This happens because the Unicode bidi algorithm sees <code>span&gt;one</code> as a single directional run, and <code>three&lt;/span</code> as another. The outermost angle brackets are balanced by the algorithm.)</p>
 </section>
 
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   <section>
   <h3 id="bidiCase4">Interpreted HTML</h3>
 <p>The characters in this string are shown in the order in which they are stored in memory.</p>