Add CNAME to .gitignore

[bnb]

If the CNAME file is added to the .gitignore, will the site still work properly when someone forks and contributes?

Getting consistent emails from GitHub saying the CNAME is already claimed, but if I remove the file, it will get removed in the next PR I send.

[bnb]

Here's the email:
GitHubEmails.pdf

Plaintext:

The page build completed successfully, but returned the following warning:
The CNAME `www.nodetogether.org` is already taken. Check out https://help.github.com/articles/troubleshooting-custom-domains/#cname-already-taken for more information.
For information on troubleshooting Jekyll see: https://help.github.com/articles/troubleshooting-jekyll-builds
If you have any questions you can contact us by replying to this email.