Feature request - allow users to pass titles to `knowyourdata.kyd`

[cczhu]

I'm currently using knowyourdata.kyd to report stats of multiple variables in Jupyter notebooks. It would be convenient to be able to print a user-defined title or caption to let me know what each one refers to at a glance, something like:

import kyd
data = ...
kyd.kyd(data, title=r'This is my data $(\mathrm{cm / s}^2)$')