Modified Certification Review section to clarify who does certification. Created new file to maintain list of approvers.

[Smitholi67]

Update to text in the Certification Review section. Added a new file to maintain list of approved certification reviewers. The list is only temporarily populated with names.

Pre-submission checklist:

Please check each of these after submitting your pull request:

• [ ] If this is a new entry, have you submitted a signed participation form?
• [ ] Did you include the product/project logo in SVG, EPS or AI format?
• [ ] Does your logo clearly state the name of the product/project/org and follow the other logo guidelines?
• [ ] If your product/project is open source, did you include the repo_url?
• [ ] Did you copy and paste the installation and configuration instructions into the README.md file in addition to linking to them?

[rannyh]

Now that the concept of "approved reviewers" is introduced, the question is how the list gets maintained? Who decides on adding/removing members? Should it be the project TSC/Co-chairs? I think it is worth clarifying @Smitholi67