Suggested additional documentation

If you change defaultContentLanguageInSubdir to true, when visiting the German language site:

{{ .Site.LanguagePrefix }} → /de


(string) The language tag as defined by RFC 5646.

{{ .Site.Language.Lang }} → de

The functions are similar, but there are some differences. We hope to explain different usage scenarios in the document.

If possible, the form of table comparison should be clearer.

execute of template failed at <.Site.Language.Lang>: Lang has arguments but cannot be invoked as function

execute of template failed at <.Site.LanguagePrefix>: wrong number of args for LanguagePrefix: want 0 got 1