RFC: change syntax of yfm-tabs (move to directive syntax)

[d3m1d0v]

Description

The syntax of YFM-Tabs is quite complex and inconvenient. There are several issues with it:

• curly liquid-like syntax for open and close block. It requires its exact spelling, empty lines before and after the content, named closing syntax
• syntax of bullet-list for describe tab name and its content. It requires to specify correct indentation on left from tab content

Proposal

First, add support of directive syntax for YFM-Tabs block: replace curly markup of opening and closing with directive syntax.

Second, abandon syntax of lists for tab and its content and come up with another, more convenient one, in which you do not need to add an indentation for the content.