[wwwdocs] cxx-status: Add C++23 papers from the Nov 2022 Kona WG21 plenary

[wwwdocs] cxx-status: Add C++23 papers from the Nov 2022 Kona WG21 plenary

[Marek Polacek]

Pushed.

commit b97d1aba41d95ae9220fe08a991738a58a716212
Author: Marek Polacek <polacek@redhat.com>
Date:   Mon Nov 14 13:49:21 2022 -0500

    cxx-status: Add C++23 papers from the Nov 2022 Kona WG21 plenary

diff --git a/htdocs/projects/cxx-status.html b/htdocs/projects/cxx-status.html
index 8650f3cd..3454cfc9 100644
--- a/htdocs/projects/cxx-status.html
+++ b/htdocs/projects/cxx-status.html
@@ -356,6 +356,42 @@
       <td class="unsupported"> <a href="https://gcc.gnu.org/PR106658">No</a></td>
       <td> </td>
     </tr>
+    <!--  Kona 2022, https://github.com/cplusplus/papers/issues/1247 -->
+    <tr>
+      <td> <code>static operator[]</code> </td>
+      <td> <a href="https://wg21.link/p2589">P2589R1</a></td>
+      <td class="unsupported"> <a href="https://gcc.gnu.org/PR107684">No</a></td>
+      <td> __cpp_multidimensional_subscript >= 202211L </td>
+    </tr>
+    <!-- Kona 2022, https://github.com/cplusplus/papers/issues/1318 -->
+    <tr>
+      <td> DR: Permitting <code>static constexpr</code> variables in
+	  <code>constexpr</code> functions </td>
+      <td> <a href="https://wg21.link/p2647">P2647R1</a></td>
+      <td class="unsupported"> <a href="https://gcc.gnu.org/PR107685">No</a></td>
+      <td> __cpp_constexpr >= 202211L </td>
+    </tr>
+    <!-- Kona 2022, https://github.com/cplusplus/papers/issues/1223 -->
+    <tr>
+      <td> DR: <code>consteval</code> needs to propagate up </td>
+      <td> <a href="https://wg21.link/p2564">P2564R3</a></td>
+      <td class="unsupported"> <a href="https://gcc.gnu.org/PR107687">No</a></td>
+      <td> __cpp_consteval >= 202211L </td>
+    </tr>
+    <!-- Kona 2022, https://github.com/cplusplus/papers/issues/1236 -->
+    <tr>
+      <td> DR: Meaningful exports </td>
+      <td> <a href="https://wg21.link/p2615">P2615R1</a></td>
+      <td class="unsupported"> <a href="https://gcc.gnu.org/PR107688">No</a></td>
+      <td> </td>
+    </tr>
+    <!-- Kona 2022, https://github.com/cplusplus/papers/issues/1316 -->
+    <tr>
+      <td> Wording for P2644R1 Fix for Range-based for Loop </td>
+      <td> <a href="https://wg21.link/p2718">P2718R0</a></td>
+      <td class="unsupported"> <a href="https://gcc.gnu.org/PR107637">No</a></td>
+      <td> </td>
+    </tr>
     <!--
     <tr>
       <td> </td>