textWidth() is listed as an "attribute"

[loganzartman]

Issue description

textWidth() is listed as a "attribute", but seems to be a "metric"

URL(s) of affected page(s)

https://processing.org/reference/
https://processing.org/reference/textWidth_.html

Proposed fix

Move textWidth() to the "Metrics" subsection

[jeremydouglass]

Huh.

That seems right in that it measures, rather than setting something.

[REAS]

Yes, agree. I'll add it to my list.