add missing duplicate code points for shift_jis https://www.w3.org/Bugs/Public/show_bug.cgi?id=16661

Author: annevk

Overview.html

@@ -42,7 +42,7 @@
 <div class="head">
 
 <h1>Encoding</h1>
-<h2 class="no-num no-toc" id="living-draft-—-8-april-2012">Living Draft — 8 April 2012</h2>
+<h2 class="no-num no-toc" id="living-draft-—-9-april-2012">Living Draft — 9 April 2012</h2>
 
 <dl>
  <dt>This Version:
@@ -65,7 +65,7 @@ <h2 class="no-num no-toc" id="living-draft-—-8-april-2012">Living Draft — 8
 <p class="copyright"><a href="http://creativecommons.org/publicdomain/zero/1.0/" rel="license"><img alt="CC0" src="http://i.creativecommons.org/p/zero/1.0/80x15.png"></a>
 To the extent possible under law, the editors have waived all copyright and
 related or neighboring rights to this work. In addition, as of
-8 April 2012, the editors have made this specification available
+9 April 2012, the editors have made this specification available
 under the
 <a href="http://www.openwebfoundation.org/legal/the-owf-1-0-agreements/owfa-1-0" rel="license">Open Web Foundation Agreement Version 1.0</a>,
 which is available at
@@ -1158,10 +1158,14 @@ <h2 id="legacy-multi-byte-japanese-encodings"><span class="secno">10 </span>Lega
 code point.
 
 <p class="note">The first index differs from the similarly named JIS X 0208
-standard due to including formerly proprietary extensions from the
-Nippon Electronics Corporation (NEC).
+standard due to including formerly proprietary extensions from IBM and NEC.
+Only the <a href="#shift_jis">shift_jis</a> <a href="#concept-encoding" title="concept-encoding">encoding</a>
+can address the full range of this index, however, the additional
+code points available to it are duplicate mappings.
 The second index is identical to the similarly named JIS X 0212 standard.
 
+<!-- NEC = Nippon Electronics Corporation -->
+
 <p>The <dfn id="jis0208-code-point">jis0208 code point</dfn> for
 (<var title="">row</var>, <var title="">cell</var>) is the code point located
 at <var title="">row</var> × 94 + <var title="">cell</var> in

Overview.src.html

@@ -1125,10 +1125,14 @@ <h2>Legacy multi-byte Japanese encodings</h2>
 code point.
 
 <p class=note>The first index differs from the similarly named JIS X 0208
-standard due to including formerly proprietary extensions from the
-Nippon Electronics Corporation (NEC).
+standard due to including formerly proprietary extensions from IBM and NEC.
+Only the <span>shift_jis</span> <span title=concept-encoding>encoding</span>
+can address the full range of this index, however, the additional
+code points available to it are duplicate mappings.
 The second index is identical to the similarly named JIS X 0212 standard.
 
+<!-- NEC = Nippon Electronics Corporation -->
+
 <p>The <dfn>jis0208 code point</dfn> for
 (<var title>row</var>, <var title>cell</var>) is the code point located
 at <var title>row</var> &times; 94 + <var title>cell</var> in