added code of conduct page

[Montekkundan]

Checklist

• • [x] I have read the Contributor Guide
• • [x] I have read and agree to the Code of Conduct
• • [x] I have added a description of my changes and why I'd like them included in the section below

Description of Changes

Created Display for Code of Conduct

Describe your changes here

• created new page file in /content
• created code of conduct page similar to newsletter page
• back button of code of conduct page goes back to #contribute
• Read our Code of Conduct redirects to /codeofconduct page

Related Issues

#85

List related issues here