v0.2

Improve Javadocs for Tom.main()

The Javadocs for the main() method are unclear and do not fully
describe its purpose.

Updating the Javadocs improves clarity by:
- Stating that main() is the entry point of the chatbot application.
- Describing its role in initializing and starting the chatbot.
- Using concise and professional phrasing aligned
  with SE-EDU conventions.

This improves code documentation, making it easier for developers
to understand the purpose of main().