Merge pull request #272 from audionerd/docs-actors-fixes

actors.mdx: misc fixes for observable-related docs

Author: davidkpiano

docs/actors.mdx

@@ -323,11 +323,13 @@ transitionActor.send({ type: 'increment' });
 
 Observable actor logic is described by an [observable stream of values](#fromObservable). Actors created from observable logic (“observable actors”) can:
 
-- Emit snapshots of its emitted value
+- Emit snapshots of the observable’s emitted value
 
 Sending events to observable actors will have no effect.
 
 ```ts
+import { interval } from 'rxjs';
+
 const secondLogic = fromObservable(() => interval(1000));
 
 const secondActor = createActor(secondLogic);
@@ -354,8 +356,10 @@ Event observable actor logic is described by an observable stream of [event obje
 Sending events to event observable actors will have no effect.
 
 ```ts
+import { fromEvent } from 'rxjs';
+
 const mouseClickLogic = fromEventObservable(() =>
-  fromEventPattern(document.body, 'click'),
+  fromEvent(document.body, 'click') as Subscribable<EventObject>
 );
 
 const canvasMachine = createMachine({