Add skeleton page for code of conduct
Add beginnings of a code-of-conduct

Based on the policy here:
http://geekfeminism.wikia.com/wiki/Conference_anti-harassment/Policy
Link to the CoC from the home page
Make headings in CoC linkable
Remove "provide escorts" line
Add Andrew's contact details
Add the CoC link to the footer
Merge pull request #6 from rowanmanning/code-of-conduct

Code of Conduct