Update library/std/src/primitive_docs.rs

Co-authored-by: fmease <[email protected]>

Author: WaffleLapkin

library/std/src/primitive_docs.rs

@@ -1136,7 +1136,7 @@ mod prim_usize {}
 /// * [`Send`] \(`&T` references also require <code>T: [Sync]</code>)
 ///
 /// [`std::fmt`]: fmt
-/// ['fmt::Pointer`]: fmt::Pointer
+/// [`fmt::Pointer`]: fmt::Pointer
 /// [`Hash`]: hash::Hash
 #[doc = concat!("[`ToSocketAddrs`]: ", include_str!("../primitive_docs/net_tosocketaddrs.md"))]
 ///