Add a link to desktop help
At the end of the tour, the app refers to the Help app for more desktop help content. This reference is important, but please consider adding a clickable link, or maybe, better, a button.
The help link URI should probably be help:gnome-help
.
Also, I suggest s/To learn more, see the Help/To learn more, see the Desktop Help/
for the current reference string.
Edited by Petr Kovář