message: docs: Update navigation-guards.md
diff: @@ -51,7 +51,7 @@ It's also possible to throw an `Error` if an unexpected situation was met. This
  If nothing, `undefined` or `true` is returned, **the navigation is validated**, and the next navigation guard is called.
  -All of the the things above **work the same way with `async` functions** and Promises:
  +All of the things above **work the same way with `async` functions** and Promises:
  ```js
  router.beforeEach(async (to, from) => {
  