text: Title: [examples] Update example projects
  Body: There two official example projects:
  
  - [FastAPI Demo](https://github.com/roman-right/beanie-fastapi-demo) - Beanie and FastAPI collaboration demonstration. CRUD and Aggregation.
  - [Indexes Demo](https://github.com/roman-right/beanie-index-demo) - Regular and Geo Indexes usage example wrapped to a microservice.
  
  Both should:
  - Show, how to use current Beanie syntax
  - Contain unit tests