About YAML

YAML (a recursive acronym for "YAML Ain't Markup Language")

• YAML is data serialization language. A language for make a file for data interchange and export between different system.
• Structure is shown through indentation (one or more spaces). If you has learn some modern programming language. YAML has similar structure with python programming language and ruby programming language.
• Sequence items are denoted by a dash, and key value pairs within a map are separated by a colon. Sequence items is like record, key value pairs is like record value, if you has learn some database knowledge.
• YAML is used in modern Joomla.

referensi:
https://www.joomla.org/
https://yaml.org/