Change generation of collection.yml

[ronaldtse]

Needed in:

• https://github.com/metanorma/iso-10303-srl/pull/218

[Intelligent2013]

Currently, stepmod2mn v1.55 generates so:

  manifest:
    - level: document
      title: Document
      docref:
        - fileref: document.xml
          identifier: iso10303-101
          sectionsplit: true
    - level: attachments
      title: Attachments

But in the ticket #186, the collection.yml instance is:

  manifest:
    - level: document
      title: Document
      sectionsplit: true
      docref:
        - fileref: document.adoc
    - level: attachments
      title: Attachments

@ronaldtse which option is correct?

[Intelligent2013]

Ah, I've understood. Green color means changes after stepmod2mn which overwrote the correct version.

[Intelligent2013]

Done in #186.