Render templates with data in your browser.
Data is used from a my-template.example.yaml file that lives alongside the actual template.
go get github.com/mattes/go-mail/go-mail-preview
go-mail-preview -listen :8000 -templates /path/to/templates
open https://localhost:8000/preview/my-template.html
open https://localhost:8000/preview/my-template.txt