Update CNTi Certification CONTRIBUTORS

[Smitholi67]

With the formation of CNTi under LFN, there is a need to update the CONTRIBUTORS.MD so that it is more accurate.

https://github.com/lfn-cnti/certification/blob/3cca4001618dbb5138e76087557f7ffcb4b28bfe/CONTRIBUTORS.md

If your name is MISSING and you would like to be a contributor, please add a comment on this issue to be ADDED. If your name is LISTED but you no longer plan to contribute, please add a comment on this issue to be REMOVED. If there is any other correction needed, please add a comment on this issue with a brief description of what needs CORRECTING.

Thanks!