message: docs: add information on when not to use tree-shakable providers
  PR Close
diff: @@ -440,6 +440,12 @@ The service can be instantiated by configuring a factory function as shown below
  <code-example path="dependency-injection/src/app/tree-shaking/service.0.ts" title="src/app/tree-shaking/service.0.ts" linenums="false"> </code-example>
  +<div class="l-sub-section">
  +
  +To override tree-shakable providers, register the provider using the `providers: []` array syntax of any Angular decorator that supports it.
  +
  +</div>
  +
  {@a injector-config}
  {@a bootstrap}
  