Update normative references to point to C++17

Author: jaredhoberock

cxx17_index.json

@@ -0,0 +1,4 @@
+{
+    "library": "20"
+}
+

cxx_N3797_index.json

@@ -7,19 +7,19 @@ <h1>Normative references</h1>
   of the referenced document (including any amendments) applies.</p>
 
   <ul>
-    <li>ISO/IEC 14882:—<cxx-footnote>To be published. Section references are relative to <a href="http://www.open-std.org/jtc1/sc22/wg21/prot/14882fdis/n3937.pdf">N3937</a>.</cxx-footnote>,
+    <li>ISO/IEC 14882:<ins>2017</ins><del>—<cxx-footnote>To be published. Section references are relative to <a href="http://www.open-std.org/jtc1/sc22/wg21/prot/14882fdis/n3937.pdf">N3937</a>.</cxx-footnote></del>,
     <cite>Programming Languages — C++</cite>
-    <cxx-foreign-index id="cxx" src="cxx_N3797_index.json" name="C++14"></cxx-foreign-index></li>
+    <cxx-foreign-index id="cxx" src="cxx17_index.json" name="C++17"></cxx-foreign-index></li>
   </ul>
 
-  <p>ISO/IEC 14882:— is herein called the <dfn>C++ Standard</dfn>.
-  The library described in ISO/IEC 14882:— clauses 17-30 is herein called
+  <p>ISO/IEC 14882:<ins>2017</ins><del>—</del> is herein called the <dfn>C++ Standard</dfn>.
+  The library described in ISO/IEC 14882:<ins>2017</ins><del>—</del> clauses <ins>20-33</ins><del>17-30</del> is herein called
   the <dfn>C++ Standard Library</dfn>. The C++ Standard Library components described in
-  ISO/IEC 14882:— clauses 25, 26.7 and 20.7.2 are herein called the <dfn>C++ Standard
+  ISO/IEC 14882:<ins>2017</ins><del>—</del> clauses <ins>28, 29.8 and 23.10.10</ins><del>25, 26.7 and 20.7.2</del> are herein called the <dfn>C++ Standard
   Algorithms Library</dfn>.</p>
 
   <p>Unless otherwise specified, the whole of the C++ Standard's Library
-  introduction (<cxx-ref in="cxx" to="library"></cxx-ref>) is included into this
+  introduction (<ins><cxx-ref in="cxx" to="library"></cxx-ref></ins><del>C++14 §20</del>) is included into this
   Technical Specification by reference.</p>
 </cxx-clause>