intradoc link for vec

Author: 20jasper

library/alloc/src/vec/mod.rs

@@ -1493,7 +1493,7 @@ impl<T, A: Allocator> Vec<T, A> {
     ///
     /// # Time complexity
     ///
-    /// Takes *O*(`len`) time. All items after the insertion index must be
+    /// Takes *O*([`Vec::len`]) time. All items after the insertion index must be
     /// shifted to the right. In the worst case, all elements are shifted when
     /// the insertion index is 0.
     #[cfg(not(no_global_oom_handling))]