Add Wiki Lexeme Dump Database to Architecture Documentation

[axif0]

The Wiki Lexeme Dump Database should be added as a data source in the architecture diagrams, showing its connection to Scribe-Data in the ETL process.

• ARCHITECTURE.md

Happy to work on this, or if anyone else wants to take it on, I'd love to help! 🚀

[andrewtavis]

Thanks for the issue, @axif0! Great that you're keeping all of these facets of Scribe in mind. So amazing 😊