Set course for 3.03 release

[mandian]

Contributed page on oma-welcome is still buggy:

@Giov216

I have installed om-welcome, browsing the pages next page, at the last screen I see a white page and to exit I have to click the x in the top right, how to solve it? Is it necessary to install missing packages?

Screenshot here:

https://forum3.openmandriva.org/t/good-news-are-always-welcome-lxqt-iso/1204/22

Tested with ISO #1420.