Get specific key from the db

What's Changed

• fetch only specific keys from all data by @builder555 in #10

New Contributors

• @builder555 made their first contribution in #10

Full Changelog: v2.1.0...v2.2.0

A new method to add new keys to the DB

Full Changelog: v2.0.1...v2.1.0

Show help on CLI sub commands

Updates the CLI to show help on subcommands

Full Changelog: v2.0.0...v2.0.1

V2

v2.0.0

Updated the README and added docs folder