Update governments.yml

[smattera]

propose file change

Your Organization: Mississippi Band of Choctaw Indians
GitHub Organization url: @MSBandofChoctawIndians
Country/Locality: Mississippi, USA

Inclusion requirements:

• Referenced account is an Organization not a User^
• If this is a government project, your Organization's description should include a reference to your country/agency.
• Make sure your Organization includes at least one public repository
• Please also include a URL for your organization that links back to your organization or agency homepage.

^ If you want to convert your account to an org, details can be found here: https://help.github.com/articles/converting-a-user-into-an-organization/

❤️ GitHub Government Contributors

[WebSnke]

Thanks for contribution! Could you maybe insert you entry in alphabetical order?

[smattera]

I've submitted a new commit (d928ec7) with the name in alphabetical order.

[WebSnke]

Thank you for your contribution. Feel free to submit even more in the future.