[NaCl SDK Docs] Only generate one top-level <section> element.

native_client_sdk/doc_generated/reference/design-docs.html

Index: native_client_sdk/doc_generated/reference/design-docs.html
diff --git a/native_client_sdk/doc_generated/reference/design-docs.html b/native_client_sdk/doc_generated/reference/design-docs.html
index f41050dfe317e85af361edafa6925e68bff75920..aa5b1edf9f2b2f7f3ed31341e205ec37f91bbe15 100644
--- a/native_client_sdk/doc_generated/reference/design-docs.html
+++ b/native_client_sdk/doc_generated/reference/design-docs.html
@@ -45,13 +45,12 @@ PPAPI (Pepper).</p>
 <ul class="small-gap">
 <li><a class="reference external" href="https://docs.google.com/a/chromium.org/document/d/1jHoLo9I3CCS1_-4KlIq1OiEMv9cmMuXES2Z9JVpmPtY/edit">Semi-automated NaCl DEPS rolls: Updates to nacl_revision field in Chromium&#8217;s DEPS file</a> (2013).  This is a description of current practice rather than a design doc.</li>
 </ul>
-<section id="obsolete-not-implemented">
 <h2 id="obsolete-not-implemented">Obsolete (not implemented)</h2>
 <p>PNaCl multi-threading support:  The following proposals do not reflect what was implemented in PNaCl in the end.  They are listed here for historical reference.</p>
 <ul class="small-gap">
 <li><a class="reference external" href="https://docs.google.com/a/chromium.org/document/d/1HcRiGOaaPLk7pQrGnjXceoM7Px3IwOjjwdiVvJVQNr4/edit">Multi-threading support for a first release of PNaCl</a> (2013): Proposal for mutex_v2/cond_v2 IRT interfaces.</li>
 <li><a class="reference external" href="https://docs.google.com/a/chromium.org/document/d/1HcRiGOaaPLk7pQrGnjXceoM7Px3IwOjjwdiVvJVQNr4/edit">Explicit vs. implicit atomicity guarantees in PNaCl</a> (2013): Discussion about how to handle atomic memory operations.</li>
 </ul>
-</section></section>
+</section>
 
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