yaml File Format Description
YAML meant in fact: "Yet Another Markup Language" (still a markup language) acronym.
note:
String not have to use double quotes;
The number of indent in the white space character is not very important, as long as the left side of the same class of elements aligned on it (but can not use the TAB character );
Allows selective addition of blank lines in the document, to increase readability;
In one file, which can contain a plurality of files, and with "-" partition;
Selective symbol "..." may be used to indicate the end of file (using stream communication, it is useful to be closed without stream, transmission end signal).