first crack at an example outreach email

We're hoping to contribute research leads to openaddresses in order to make it easier for folks to begin reaching out to governments. Here's some sample language aimed at 

- reducing friction for those reaching out
- increasing the odds that even if the answer is "no" we can collect useful information

Thoughts? This is just an attempt to get the ball rolling -- the experiences that others have had with this process are definitely going to make this document better.