message: docs: clarify OnPush
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diff: @@ -11,7 +11,7 @@ If you are confident that a part of the application is not affected by a state c
  OnPush change detection instructs Angular that to only run change detection automatically for a component subtree when:
  * The root component of the subtree receives new inputs as the result of a template binding. Angular compares the current and past value of the input with `==`
  -* Angular handles an event within the component with OnPush change detection
  +* Angular handles an event _(e.g. using event binding, output binding, or `@HostListener`)_ in the subtree's root component or any of its children wether they are using OnPush change detection or not.
  You can set the change detection strategy of a component to `OnPush` in the `@Component` decorator:
  