Enhance documentation on wake call memory ordering

[xmh0511]

Add documentation about memory ordering requirements for wake calls. Try to fix #128920

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[rust-log-analyzer]

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Diff in /checkout/library/alloc/src/task.rs:39:
 ///
 /// # Memory Ordering
 ///
-/// The executor must guarantee that the call to `wake` _happens-before_ the corresponding woken `poll`. 
-/// In addition, the executor must also guarantee that multiple calls to `wake` that were coalesced into a single 
+/// The executor must guarantee that the call to `wake` _happens-before_ the corresponding woken `poll`.
+/// In addition, the executor must also guarantee that multiple calls to `wake` that were coalesced into a single
 /// `poll()` invocation all _happens-before_ the corresponding woken `poll`.
 ///
 /// # Examples
fmt: checked 6759 files
Bootstrap failed while executing `test src/tools/tidy tidyselftest --extra-checks=py,cpp,js,spellcheck`
Build completed unsuccessfully in 0:00:48