message: docs(router): change slideInDownAnimation into slideInAnimation
  In the Routing & Navigation there is a typo - slideInDownAnimation, but it should be slideInAnimation
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  PR Close
diff: @@ -2242,10 +2242,10 @@ This file does the following:
  You could also create more transitions for other routes. This trigger is sufficient for the current milestone.
  -Back in the `AppComponent`, import the `RouterOutlet` token from the `@angular/router` package and the `slideInDownAnimation` from
  +Back in the `AppComponent`, import the `RouterOutlet` token from the `@angular/router` package and the `slideInAnimation` from
  `'./animations.ts`.
  -Add an `animations` array to the `@Component` metadata's that contains the `slideInDownAnimation`.
  +Add an `animations` array to the `@Component` metadata's that contains the `slideInAnimation`.
  <code-example path="router/src/app/app.component.2.ts" linenums="false" header="src/app/app.component.ts (animations)" region="animation-imports">
  