message: docs: change grammar in architecture guide
  grammar change for better understanding
  PR Close
diff: # Introduction to Angular concepts
  -Angular is a platform and framework for building single-page client applications in HTML and TypeScript.
  +Angular is a platform and framework for building single-page client applications using HTML and TypeScript.
  Angular is written in TypeScript.
  It implements core and optional functionality as a set of TypeScript libraries that you import into your apps.
  