docs(template-syntax): delete a single character

Author: kwalrath

public/docs/ts/latest/guide/template-syntax.jade

@@ -781,7 +781,7 @@ block style-property-name-dart-diff
 
   Directives typically raise custom events with an Angular [EventEmitter](../api/core/index/EventEmitter-class.html).
   The directive creates an `EventEmitter` and exposes it as a property.
-  The directives calls `EventEmitter.emit(payload)` to fire an event, passing in a message payload, which can be anything.
+  The directive calls `EventEmitter.emit(payload)` to fire an event, passing in a message payload, which can be anything.
   Parent directives listen for the event by binding to this property and accessing the payload through the `$event` object.
 
   Consider a `HeroDetailComponent` that presents hero information and responds to user actions.