Improve RUE information

[NoahBres]

What information should be added?

1. Make RUE a linkable heading
2. The RUE section says that max speed is limited without explaining you can lift this limit
3. I think the wording is confusing and could be better explained. Also possibly note the 50ms period for updates. Also perhaps note that the velocity controller is on the rev hub, controlled independently of your code. The section is not really helpful regarding units. It gives a sample of 0.2 ("If a power of .2 were fed while this") but does not elaborate on what this means. Should explain that this will translate to 20% of the max ticks per second in the motor config.

Does it need it's own page? (Yes/No): No

If it needs a page, which section should it be in? If it doesn't, which page should it be under?
https://gm0.org/en/latest/docs/software/using-the-sdk.html

[abidingabi]

should probably link to https://docs.revrobotics.com/rev-control-system/programming/using-encoder-feedback

[NoahAndrews]

The page should also explain why the limit is there, because if you tried to run at the max theoretical speed, your real world mechanism will literally never hit that even when the battery is full. You might as well use RWE at that point. You should pick a speed low enough that the motor will be able to reach that speed even when friction increases or your battery isn't fresh off the charger.