[Yaml-core] Q for "Example 6.1. Indentation Spaces"

[Max-Julian P. <max...@po...>]

Hi there,

In the YAML Specification 1.2 3rd edition (patched 2009-10-01)[*] in
"Example 6.1. Indentation Spaces"
the right green block shows a start of document marker as "- - -". Other 
examples only show "---", and section 2.2. Stuctures also only mentions 
"---". Finally, section 9.1.2 Document Markers allows in its BNF 203 no 
possibility for a space or spaces between the dashes.

 > [203] c-directives-end ::= “-” “-” “-”


Am i missing something, or should the example 6.1. be updated so that 
the document start marker is also "---" there?

with best regards,

Max


[*] https://yaml.org/spec/1.2/spec.html