I just added my own UMG tutorial, on the BP side of things funnily enough!
you can go to my tutorial and click on it to edit it to see how I put it together!
https://wiki.unrealengine.com/UMG,_Create_Scrollable_List_of_Clickable_Buttons_From_Dynamic_Array
Most important thing is to add this tag at the bottom of your tutorial:
[Category:Code]]
or
[Category:Tutorials]]