* chore: create security.txt
Adding a security.txt file enables security researchers to quickly and easily see where they can submit security issues and know that they are being taken serious. From the proposal website:
> When security risks in web services are discovered by independent security researchers who understand the severity of the risk, they often lack the channels to disclose them properly. As a result, security issues may be left unreported. security.txt defines a standard to help organizations define the process for security researchers to disclose security vulnerabilities securely.
See also https://securitytxt.org
* homer merge with hedge
* re-add contact email
* move file to public website
