Modified placeholder functions and text for has_transformed_position

[untzag]

Thanks @kameyer226, I've been using the term "overload" wrong this whole time. Looks like override is the correct term when the method is redefined through inheritance and the function signature remains unchanged.

[ksunden]

I am actually quite strongly against the "multiply by 1.000" here...

I do not think it actually is pedagogically helpful

• it is for one thing implying something of the precision by having 3 zeros
• it is doing extra computation for no run-time reason (and many of the usecases of this code are simply to have an offset, so these are often left as is)

[untzag]

Since there is some debate, I'm going to hop on and remove the multiplication / reassigning variable names piece from this PR.

@kameyer226 you can reopen the multiplication code in a separate PR if you wish to, we can discuss it there on its own merits.

As a thought, perhaps you could contribute some examples to the YEP instead of changing the code? That might be a more productive way to give new users clues about how to use this trait.

I'll merge the docs changes now. Thanks for the PR.