message: docs: remove first person from 2 sentences
  This commit removes two instances of the first person in the
  Dependency injection providers documentation.
  PR Close
diff: @@ -197,11 +197,11 @@ Like `EvenBetterLogger`, `HeroService` needs to know if the user is authorized
  That authorization can change during the course of a single application session,
  as when you log in a different user.
  -Let's say you don't want to inject `UserService` directly into `HeroService`, because you don't want to complicate that service with security-sensitive information.
  +Imagine that you don't want to inject `UserService` directly into `HeroService`, because you don't want to complicate that service with security-sensitive information.
  `HeroService` won't have direct access to the user information to decide
  who is authorized and who isn't.
  -To resolve this, we give the `HeroService` constructor a boolean flag to control display of secret heroes.
  +To resolve this, give the `HeroService` constructor a boolean flag to control display of secret heroes.
  <code-example path="dependency-injection/src/app/heroes/hero.service.ts" region="internals" header="src/app/heroes/hero.service.ts (excerpt)"></code-example>
  