Merge pull request #806 from bugadani/patch-1

Fix relnotes anchor

Author: Mark-Simulacrum

posts/inside-rust/2021-03-23-1.51.0-prerelease.md

@@ -18,5 +18,5 @@ The index is <https://dev-static.rust-lang.org/dist/2021-03-23/index.html>. You
 can leave feedback on the [internals thread][internals].
 
 [#76980]: https://github.com/rust-lang/rust/issues/76980
-[relnotes]: https://github.com/rust-lang/rust/blob/master/RELEASES.md#version-1500-2021-02-11
+[relnotes]: https://github.com/rust-lang/rust/blob/master/RELEASES.md#version-1510-2021-03-25
 [internals]: https://internals.rust-lang.org/t/1-51-0-prerelease-testing