Merge branch '2-follow-up-from-format-review-unifying-nfvi-requirements-including-epa' into 'master'

Resolve "Follow-up from "Format review": Unifying NFVI requirements including EPA?"

Closes #2

See merge request !2

Merge branch 'master' into '2-follow-up-from-format-review-unifying-nfvi-requirements-including-epa'

# Conflicts:
#   01-requirements.md

- Unified both sections
- Changed numbered list to subsections

Format review

See merge request !1