Review and update 01-introduction/index.md for RF v3

[gperu]

Overview

Review and update the introduction section as part of the Reference Framework v3 release cycle.

File

https://github.com/EVERSE-ResearchSoftware/reference-framework/blob/main/source/01-introduction/index.md

Tasks

• Review current introduction content for RF v3 compatibility
• Update scope and goals framing as needed
• Add audience statement once drafted by Shoaib (pending)
• Verify consistency with overall RF v3 structure
• Follow contributing guidelines

Context

RF v3 planning, TF2 meeting 23 March 2026.

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Transferred from gperu/giacomo-work-tracker #22