chore: update to Angular 11

BREAKING CHANGE: This release requires Angular 11.

README.md

@@ -60,17 +60,10 @@ export class AppModule { }
 ```
 
 
-## Building the project
-
-This project was generated with [Angular CLI](https://github.com/angular/angular-cli) version 6.2.3.
-
 ### Development server
 
 Run `ng serve` for a dev server that hosts the demo application. Navigate to `http://localhost:4200/`. The app will automatically reload if you change any of the source files.
 
-### Code scaffolding
-
-Run `ng generate component component-name --project oocx-ng` to generate a new component. You can also use `ng generate directive|pipe|service|class|guard|interface|enum|module`.
 
 ### Build
 
@@ -82,3 +75,4 @@ Run `ng build` to build the demo project. The build artifacts will be stored in
 
 Run `ng test oocx-ng` to execute the unit tests via [Karma](https://karma-runner.github.io).
 
+