Add &mut as an alias for 'reference' primitive

jyn514 · jyn514 · commit 8fb553c7daf3 · 2020-12-15T20:22:12.000-05:00
diff --git a/library/std/src/primitive_docs.rs b/library/std/src/primitive_docs.rs
@@ -920,6 +920,7 @@ mod prim_usize {}
 
 #[doc(primitive = "reference")]
 #[doc(alias = "&")]
+#[doc(alias = "&mut")]
 //
 /// References, both shared and mutable.
 ///
