Hugo Templates
https://gohugo.io/templates/introduction
https://gohugo.io/templates/introduction/#variables
https://gohugo.io/functions/scratch
https://golang.org/pkg/text/template
https://golang.org/ref/spec#String_literals
https://golang.org/ref/spec#Integer_literals
https://golang.org/ref/spec#Floating-point_literals
https://golang.org/ref/spec#Boolean_types