Update MAINTAINERS, add OWNERS

The OWNERS file allows gerrit to automatically CC the owners on a review
when it's pushed, removing the need to add maintainers manually.

Eventually the MAINTAINERS file will be deprecated. For now keep both
until it's removed project-wide.

Replace IRC with Discord since the community doesn't use IRC anymore.
Remove Ratan, he is no longer working with IBM.
Update discord name for Gunnar, Lei, and Jayanth.

Change-Id: Id62bad573059dd58226cd90a40b4fe77952edce1
Signed-off-by: Adriana Kobylak <anoo@us.ibm.com>
2 files changed