Document how to do drive-by (one-time) contribution to Oniro

A one-time contribution requires the user to create an Eclipse account, set up their password for Gitlab and sign ECA. This procedure should be documented along with documenting pipeline behaviour for such contributions.

Edited Jul 29, 2022 by Amit Kucheria

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information