Delegate Security to awesome-security curated list

[aschrijver]

Security is such a specialized and vast field that it falls outside the scope of humanetech. There are plenty experts that curate plenty lists of the best security-related resources.

So Security section will be delegated to a good top-level location for drilling down into specific topics. That location is awesome-security.

[aschrijver]

I notified awesome-security on the change: sbilly/awesome-security#145