[Xmldatadumps-l] More updates to dumps html pages

[Ariel Glenn WMF]

By now you know the drill: have a look at the changes [1] and weigh in on
the ticket [2]. Silence = consent to merge on Thursday evening. Thanks
again to Ladsgroup for the work. Happy Monday!

Ariel

[1] https://gerrit.wikimedia.org/r/#/c/337264/
[2] https://phabricator.wikimedia.org/T155697