Mikaela's version of the CoC.

As no one else isn't going to do anything or so it seems, I will now open pull request of this branch which contains the way how I think the CoC should be.

There is also an idea to copy freenode-feminists's site and modify it to more suitable for our use, but it's in Jekyll which I don't understand and I feel like this couldn't get more simple than this. Oh and the freenode-feminists page is in branch `freenode-feminists`.

This is mostly copied from Limnoria's CoC.