textproc/ruby-kramdown-rfc2629: update to 1.7.11

1.7.9 (2024-04-20)

* Add option nested_ol_types

  Set globally in {::options nested_ol_types="1, i, a" /}
  or for a single <ol in an IAL {: nested_ol_types="1 (%i) A"}

  The value needs to be an array of <ol type= values, expressed as one of:

  1. A YAML array
  2. A string that will be split on commas (with optional blank space following)
  3. A string that will be split on blank space

  When testing this, an HTML rendering issue might cause some confusion:
  ietf-tools/xml2rfc#1122

1.7.10 (2024-04-21)

* Also take nested_ol_types from YAML kramdown_options

  As in

	kramdown_options:
	  nested_ol_types: 1, i, a

  (overridden by ::options and by pseudo-attribute on <ol)

1.7.11 (2024-04-21)

* Add option ol_start_at_first_marker

  kramdown_options:
    ol_start_at_first_marker: true

  Default: false (for backward compatibility)

  If true, an ordered list (<ol) will use the number in its first
  marker (1 for 1. etc.) as the default value of the start= attribute.

  (Increase commonmark compatibility)


(taca)