Say what these do without naming what they lean on

A doc comment that names something outside the method goes stale when
that thing changes, and nobody editing it looks here.

src/default/task.rs

@@ -13,8 +13,8 @@ impl<F: FnOnce(&mut Rsc::State, &mut Rsc) + Send, Rsc: HasState> TaskUpdate<Rsc>
 
 /// Hands an update from a task to the thread that owns the ui. Delivery and
 /// waking are one act: a host posts the update as a message its loop already
-/// carries -- winit's `EventLoopProxy`, Android's looper -- so nothing has to
+/// carries, so nothing has to wake the loop separately, or claim a redraw to
-/// wake the loop separately, or claim a redraw to be looked at.
+/// be looked at.
 pub trait TaskQueue<Rsc: HasState>: Send + Sync + 'static {
     fn send(&self, update: Box<dyn TaskUpdate<Rsc>>);
 }

src/harness.rs

@@ -151,9 +151,8 @@ impl Harness {
         self.sense();
     }
 
-    /// A wheel carries no position, so this goes wherever
+    /// A wheel carries no position, so this goes wherever the cursor was last
-    /// [`move_to`](Self::move_to) last put the cursor -- nowhere, until it has
+    /// moved to -- nowhere, until it has been moved.
-    /// been called.
     pub fn scroll(&mut self, delta: impl Into<Vec2>) {
         self.cursor.scroll_delta = delta.into();
         self.sense();
@@ -174,8 +173,8 @@ impl Harness {
         }
     }
 
-    /// Dispatches against the last [`frame`](Self::frame)'s layout, which is
+    /// Dispatches against the layout of the last frame, which is what a
-    /// what a window delivers input against too.
+    /// window delivers input against too.
     fn sense(&mut self) {
         let cursor = self.cursor.clone();
         let size = self.render.output_size();