docs(cookbook/component-communication): Astronout -> AstronautComponent word typo fix

closes #1067
Changed AstronoutComponent to AstronautComponent.

Author: bampakoa

public/docs/ts/latest/cookbook/component-communication.jade

@@ -299,8 +299,8 @@ a(id="countdown-tests")
 +makeExample('cb-component-communication/ts/app/missioncontrol.component.ts')
 
 :marked
-  The `AstronoutComponent` also injects the service in its constructor.
-  Each `AstronoutComponent` is a child of the `MissionControlComponent` and therefore receives its parent's service instance:
+  The `AstronautComponent` also injects the service in its constructor.
+  Each `AstronautComponent` is a child of the `MissionControlComponent` and therefore receives its parent's service instance:
 
 +makeExample('cb-component-communication/ts/app/astronaut.component.ts')
 
@@ -315,7 +315,7 @@ a(id="countdown-tests")
     it controls the lifetime of the `MissionService`.
 :marked
   The *History* log demonstrates that messages travel in both directions between
-  the parent `MissionControlComponent` and the `AstronoutComponent` children,
+  the parent `MissionControlComponent` and the `AstronautComponent` children,
   facilitated by the service:
 
 figure.image-display
@@ -324,7 +324,7 @@ figure.image-display
 :marked
   ### Test it
 
-  Tests click buttons of both the parent `MissionControlComponent` and the `AstronoutComponent` children
+  Tests click buttons of both the parent `MissionControlComponent` and the `AstronautComponent` children
   and verify that the *History* meets expectations:
 
 +makeExample('cb-component-communication/e2e-spec.js', 'bidirectional-service')