message: docs: add missing command in `WebWorker` guide
  The command was accidentally removed in
  PR Close
diff: @@ -19,6 +19,8 @@ To add a web worker to an existing project, use the Angular CLI `ng generate` co
  You can add a web worker anywhere in your application.
  For example, to add a web worker to the root component, `src/app/app.component.ts`, run the following command.
  +`ng generate web-worker app`
  +
  The command performs the following actions.
  - Configures your project to use web workers, if it isn't already.
  