As a Dev I want to create the documentation of the API - List of created event registrations
Acceptance Criteria:
- The documentation should be add here: https://www.mediawiki.org/wiki/Extension:CampaignEvents/Api
-The Documentation of the API should have at least:
- Description
- Method (GET, POST, etc..)
- Payload (json)
- Success Response (json)
- Error Response (json)