Final call: html-page-title: include "non-empty" in the title #1379

Hey folks,
One more final call before the week is over. This one to change the title
of the "HTML page has title" rule to "HTML page has non-empty title". This
PR closes on July 31st. If you have any comments, please leave a review on
the pull request:

https://github.com/act-rules/act-rules.github.io/pull/1379

Kind regards

-- 
*Wilco Fiers*
Axe for Web product owner - Co-facilitator WCAG-ACT - Chair ACT-R