GitBook provides a serie of builtin filters and blocks to help you write templates.
value|default(default, [boolean])
If value is strictly undefined, return default, otherwise value. If boolean is true, any JavaScript falsy value will return default (false, "", etc)
arr|sort(reverse, caseSens, attr)
Sort arr with JavaScript's arr.sort function. If reverse is true, result will be reversed. Sort is case-insensitive by default, but setting caseSens to true makes it case-sensitive. If attr is passed, will compare attr from each item.
{% markdown %}Markdown string{% endmarkdown %}
Render inline markdown
{% asciidoc %}AsciiDoc string{% endasciidoc %}
Render inline asciidoc