Add section 3

Author: kabilar

docs/terms-policies/governance.md

@@ -28,6 +28,15 @@ DANDI (Distributed Archives for Neurophysiology Data Integration) enables FAIR (
 - Enables reproducible practices and publications through data standards such as NWB and BIDS.
 - The platform is not just an endpoint to dump data, it is intended as a living repository that enables collaboration within and across labs.
 
+## 3. Core Principles
+
+1. Openness & Transparency: Designs, discussions, and decisions are public by default
+2. FAIR & Reproducibility: Data and code evolution remain traceable and citable
+3. Sustainability: Architectural and process decisions consider long-term maintainability
+4. Inclusivity & Respect: Guided by a Code of Conduct
+5. Stewardship: Authority derives from consistent, high‑quality contribution
+6. Accountability: Roles carry explicit responsibilities
+7. Security & Privacy: Responsible handling of sensitive data and credentials
 
 ## 4. Project Structure