Welcome users to org, not repo

[binford2k]

As this bot exists, it will welcome users to the repository. Many orgs (like us) have a lot of small repositories and would only like to welcome users to the org once.

Now that this can use the org level .github repository, I'd like to have a key in there like WelcomeBotOrgWide: true to instruct the plugins to look for issues & PRs across the whole org and not just the repository.

[welcome]

Thanks for opening this issue, a maintainer will get back to you shortly!

[huan]

I need this feature too!