chore(showcase): Add portfolio of Cole Townsend (#15933)
chore(showcase): Add portfolio of Cole Townsend (#15933)

* chore(showcase): Add portfolio of Cole Townsend

* Update sites.yml

* Fix categories on twnsnd.co

gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby,gatsbyjs/gatsby