Add coder.com program

[ghuntley]

Summary

Implements the basics as detailed on https://ghuntley.com/under-suspicion/

Quality Assurance Checklist

< Confirmation of this pull request meeting the following requirements, prior to merge >

Review Items	Y/N
Site has a publicly known bug bounty or vulnerability disclosure program	y
Disclosure policy is publicly available	y
Public URL	y
Submission follows the Diodb schema	y

Your Twitter handle (Optional):

• https://twitter.com/coderhq
• https://twitter.com/geoffreyhuntley
• https://twitter.com/endingwithali

[nikitastupin]

Thank you!