message: docs: small English improvement
  PR Close
diff: @@ -59,7 +59,7 @@ It repeats the host element for each element in a list.
  The syntax in this example is as follows:
  * `<li>` is the host element.
  -* `heroes` holds the mock heroes list from the `HeroesComponent` class, the mock heroes list.
  +* `heroes` holds the mock heroes list from the `HeroesComponent` class.
  * `hero` holds the current hero object for each iteration through the list.
  <div class="alert is-important">
  