Small fixes on runtime_file docs

[Assetvi]

1. Add acronym "DCC" (Digital Content Creation) for clarity
2. Use dedicated Note section to improve clarity

[SkogiB]

Check fails stating no content block found for the note:: directive, unsure on how .rst files work but we do want to merge this if you can figure out what that needs changed

[Assetvi]

I think it is because I forgot to add two spaces of indentation after note.

Should be fixed now, can you rerun the Check?