Links to functions in reference manual are 404

All links to the following functions in [the reference manual](https://code.markedmondson.me/googleAuthR/reference/index.html) on the website are 404:

<img width="937" alt="Screenshot 2023-12-15 at 14 15 27" src="https://github.com/MarkEdmondson1234/googleAuthR/assets/11330453/4a0289de-bda2-4d98-94bd-a8b172583bd1">
