Update README, because nothing is ever simple

[Burgestrand]

This is an irk of mine. No ill was meant when these words were written, but I feel using the word "simply" is a bit crass.

To do

• [x] I have read the contributing guidelines.
• [x] I have added relevant tests.
• [x] I have adjusted relevant documentation.
• [x] I have made sure the individual commits are meaningful.
• [x] I have added relevant lines to the CHANGELOG.

PS: Thank you for contributing to Pundit ❤️

[Burgestrand]

@dgmstuart I'm not sure if this is the improvement I intend it to be. wdyt, is it better or worse?