give discord a head of security channel

[Flaborized]

Can't think of really anything that HoSes would say that shouldn't be in public channels, the mentor channel is primarily because they need to be able to answer mentorhelps from discord and those should not be shown to non-mentors. The role isn't used for anything at all really (We made it with the intent of pinging HoS players for feedback on game design opinions, but it's actually better to just ask in public channels) and hasn't added a huge amount IMO, so I don't see what good a channel would be. Security tips and game design discussion regarding security is better in a public space where other sec players can comment on it and see it