Follow-up from "Added MD format documentation for current support of subscription and notification in osm"

The following discussion from !56 (merged) should be addressed:

• @gomezchavez started a discussion:

  Contribution not linked to index

created merge request !74 (merged) to address this issue

mentioned in merge request !74 (merged)

mentioned in commit b99e0b0b

closed with merge request !74 (merged)