chore: typographic improvements (#6262)

tokio/src/io/util/flush.rs

@@ -11,6 +11,7 @@ pin_project! {
     /// A future used to fully flush an I/O object.
     ///
     /// Created by the [`AsyncWriteExt::flush`][flush] function.
+    ///
     /// [flush]: crate::io::AsyncWriteExt::flush
     #[derive(Debug)]
     #[must_use = "futures do nothing unless you `.await` or poll them"]

tokio/src/runtime/task/core.rs

@@ -157,10 +157,10 @@ pub(crate) struct Header {
     /// Table of function pointers for executing actions on the task.
     pub(super) vtable: &'static Vtable,
 
-    /// This integer contains the id of the OwnedTasks or LocalOwnedTasks that
-    /// this task is stored in. If the task is not in any list, should be the
-    /// id of the list that it was previously in, or `None` if it has never been
-    /// in any list.
+    /// This integer contains the id of the `OwnedTasks` or `LocalOwnedTasks`
+    /// that this task is stored in. If the task is not in any list, should be
+    /// the id of the list that it was previously in, or `None` if it has never
+    /// been in any list.
     ///
     /// Once a task has been bound to a list, it can never be bound to another
     /// list, even if removed from the first list.