v0.2.0

Remaining functionality for the package: get_request_param() function.

Unrelated to functionality of the package, but also included:

• Documentation, especially in README.md
• Tasks updates for the build/publish workflow.
• Unit tests.
  These not only test the package, but also demonstrate its use.

What's Changed

• Functionality and documentation by @joaonc in #8
• Release 0.2.0 by @joaonc in #9

Full Changelog: 0.1.0...0.2.0