Rebrand site/mailing list

[Pat Schloss]

To be consistent with the parent organization, we probably want to brand ourselves as "UM Carpentries" rather than "UM SWC" (see also UMCarpentries/intro-curriculum-r#18)

[Kelly Sovacool, PhD]

Suggest "U-M Carpentries" -- I think having the hyphen is consistent with the branding guidelines https://brand.umich.edu/editorial-resources/abbreviations/

[Kelly Sovacool, PhD]

Thanks Pat!