Refine reference data documentation and standardise output names

[Gtregon]

@AlexandraMiddleton @Adenikemie will refine another version of the reference data documentation and will work on standardising names of outputs for this process. They will work with @Gtregon on this.

✅ Definition of Done

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• 1. Define acceptance criteria.
• 2. Assess the need for a review process. If a review process is required, the issue states:
  1. Who is involved in the review?
  2. When will the review take place?
  3. Who is responsible for taking on the feedback?
  4. What additional tasks are involved and are they visible on the backlog?
• 3. Make progress and post updates.
• 4. Check off completed acceptance criteria.
• 5. Post links to digital outputs.
• 6. Note the value added to the product.