Update `README.md`

[CJohnston079]

Issue

Once obfuscator has met the criteria of the MVP, README.md should be updated. Generally, the README should:

• Give instructions on how to install and run the project
• Give guidance on how to use the project
• Choose a licence
• [optional] Add badges

[CJohnston079]

Resolved in 07a21d6dd2541adf9230bc87cbc534170df7cc93.