Update some tags in seeds.rb per Paul's instructions (these have been added on staging and prod, I just want to keep this file up to date).
Update some tags in seeds.rb per Paul's instructions (these have been added on staging and prod, I just want to keep this file up to date).

SumOfUs/Champaign,SumOfUs/Champaign,SumOfUs/Champaign,SumOfUs/Champaign,SumOfUs/Champaign