Update documentation

Author: randomnetcat

libcxx/docs/ReleaseNotes/21.rst

@@ -47,6 +47,7 @@ Implemented Papers
 - P1222R4: A Standard ``flat_set`` (`Github <https://github.com/llvm/llvm-project/issues/105193>`__)
 - P2897R7: ``aligned_accessor``: An mdspan accessor expressing pointer over-alignment (`Github <https://github.com/llvm/llvm-project/issues/118372>`__)
 - P3247R2: Deprecate the notion of trivial types (`Github <https://github.com/llvm/llvm-project/issues/118387>`__)
+- P2404R3 - Move-only types for ``equality_comparable_with``, ``totally_ordered_with``, and ``three_way_comparable_with`` (`Github <https://github.com/llvm/llvm-project/pull/99420>`__)
 
 Improvements and New Features
 -----------------------------

libcxx/docs/Status/Cxx23Papers.csv

@@ -67,7 +67,7 @@
 "`P2302R4 <https://wg21.link/P2302R4>`__","``std::ranges::contains``","2022-07 (Virtual)","|Complete|","19",""
 "`P2322R6 <https://wg21.link/P2322R6>`__","``ranges::fold``","2022-07 (Virtual)","","",""
 "`P2374R4 <https://wg21.link/P2374R4>`__","``views::cartesian_product``","2022-07 (Virtual)","","",""
-"`P2404R3 <https://wg21.link/P2404R3>`__","Move-only types for ``equality_comparable_with``, ``totally_ordered_with``, and ``three_way_comparable_with``","2022-07 (Virtual)","","",""
+"`P2404R3 <https://wg21.link/P2404R3>`__","Move-only types for ``equality_comparable_with``, ``totally_ordered_with``, and ``three_way_comparable_with``","2022-07 (Virtual)","|Complete|","21",""
 "`P2408R5 <https://wg21.link/P2408R5>`__","Ranges iterators as inputs to non-Ranges algorithms","2022-07 (Virtual)","","",""
 "`P2417R2 <https://wg21.link/P2417R2>`__","A more ``constexpr`` ``bitset``","2022-07 (Virtual)","|Complete|","16",""
 "`P2419R2 <https://wg21.link/P2419R2>`__","Clarify handling of encodings in localized formatting of chrono types","2022-07 (Virtual)","","",""