!!! Overview
[{$pagename}]  ("YAML Ain't Markup Language") is a [human]-readable [data]-serialization language. [{$pagename}] is commonly used for [configuration] files, but could be used in many [applications] where [data] is being stored (e.g. debugging output) or transmitted (e.g. document headers). 

[{$pagename}] targets many of the same communications applications as [XML] but has a minimal syntax which intentionally differs from [SGML]. 

[{$pagename}] uses both [Python]-style indentation to indicate nesting, and a more compact format that uses [[ ] for lists and { } for maps making [{$pagename}] 1.2 a superset of [JSON] (???)

!! More Information
There might be more information for this subject on one of the following:
[{ReferringPagesPlugin before='*' after='\n' }]