Create initative page: Contribution events organizers and mentors

Problem/Motivation

It would be useful to know who in the world is involved in contribution events so they could be contacted for advice or to help with new events.

Steps to reproduce

Proposed resolution

Create a page in the community initiative section where people can add their own information if they are interested in organizing and mentoring at contribution events.

Remaining tasks

1. Create skeleton page
2. Link to page from project page

User interface changes

API changes

Data model changes