Created COMMITTERS.md file

#8 earlier pull request, addressed all comments from there. 
Returned line 2 to read: The issue should be worked in a branch (Outside of the cerner/cerner_splunk repo).
Moved "An Cerner internal JIRA will be logged by Cerner with a link to the GitHub Issue, so that we can track and prioritize work.  Code reviews may happen internally using Crucible if there is a need; however, all code must also be reviewed publically by way of a Github Pull Request." to 2.1