Update library/alloc/src/collections/binary_heap.rs

Co-authored-by: Joshua Nelson <joshua@yottadb.com>

Author: denisvasilik

library/alloc/src/collections/binary_heap.rs

@@ -1223,7 +1223,7 @@ unsafe impl<T: Ord> TrustedLen for IntoIterSorted<T> {}
 
 /// A draining iterator over the elements of a `BinaryHeap`.
 ///
-/// This `struct` is created by the [`drain`] method on [`BinaryHeap`]. See its
+/// This `struct` is created by [`BinaryHeap::drain()`]. See its
 /// documentation for more.
 ///
 /// [`drain`]: BinaryHeap::drain