Rollup merge of rust-lang#83280 - starthal:fix-typo-keyword-docs, r=dtolnay

Fix pluralization in keyword docs

Author: Dylan-DPC

library/std/src/keyword_docs.rs

@@ -1031,8 +1031,8 @@ mod mod_keyword {}
 /// };
 /// ```
 ///
-/// For more information on the `move` keyword, see the [closure]'s section
-/// of the Rust book or the [threads] section
+/// For more information on the `move` keyword, see the [closures][closure] section
+/// of the Rust book or the [threads] section.
 ///
 /// [closure]: ../book/ch13-01-closures.html
 /// [threads]: ../book/ch16-01-threads.html#using-move-closures-with-threads