Fix P1871R1 link in "Microsoft C/C++ language conformance by Visual Studio version"

Author: Rageking8

docs/overview/visual-cpp-language-conformance.md

@@ -401,7 +401,7 @@ A more detailed listing of Standard Library features and bug fixes by product ve
 | &emsp;[`P1023R0 constexpr For std::array Comparisons`](https://wg21.link/P1023R0) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &emsp;[`P1115R3 erase()/erase_if() Return size_type`](https://wg21.link/P1115R3) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &emsp;[`P1831R1 Deprecating volatile in the standard library`](https://wg21.link/P1831R1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
-| &emsp;[`P1871R1 Concept traits should be named after concepts`](https://wg21.link/P1831R1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
+| &emsp;[`P1871R1 Concept traits should be named after concepts`](https://wg21.link/P1871R1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &emsp;[`P1956R1 <bit> has_single_bit(), bit_ceil(), bit_floor(), bit_width()`](https://wg21.link/P1956R1) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &emsp;[`P1964R2 Replacing boolean With boolean-testable`](https://wg21.link/P1964R2) | VS 2019 16.7 <sup>[20](#note_20)</sup> |
 | &emsp;[`P1976R2 Fixed-size span construction from dynamic range`](https://wg21.link/P1976R2) | VS 2019 16.7 <sup>[20](#note_20)</sup> |