Problem: Currently, people who want to give feedback about the RevisionSlider need to navigate to the Extension discussion page[1]. This might not be clear to everyone.

Task: Add another sentence to the first page of the RevisionSlider manual that is hidden behind the help icon.
Current text:

The RevisionSlider helps you to navigate and compare revisions on the diff page. It is based on a community wish from the German-speaking community technical wishlist.

New text

The RevisionSlider helps you to navigate and compare revisions on the diff page. It is based on a community wish from the German-speaking community technical wishlist. Feedback is very much appreciated here.

"here" should be a link to [1], opening it in another tab.

Background:
This is part of adding the revision slider to the revision diff page. The revision slider is a feature that adds a visualization of all revisions to the compare screen.
The revision slider was originally prototyped by the WMF Community Tech team and then handed over to the WMDE TCB team, as it is also a solution to fulfill a wish of the German Community Wishlist: https://de.wikipedia.org/wiki/Wikipedia:Umfragen/Technische_W%C3%BCnsche_2015/Artikel#Anzeige_aller_Bearbeitungskommentare_im_Diff

[1] https://www.mediawiki.org/wiki/Extension_talk:RevisionSlider