README

Suggestions from initial README draft PR #1

• clarify what is meant by 'inventory' (is it historical)? https://github.com/ccmmf/.github/pull/1/files#r1681277629
• specify temporal resolution of agronomic management
• add "Research Partners and External Stakeholders" https://github.com/ccmmf/.github/pull/1/files#r1678167665
• add unifying workflow figure in the readme as well that shows graphically how it all fits together?

CONTRIBUTING

• Preferred languages
• Code style
• What contributions go to PEcAn or SIPNET, what to CCMMF
  • Types of output: workflow, documentation, sipnet, monitoring
• Guidance for tests, documentation, NEWS
• Guidance for PR feedback
• Authorship, CITATION.cff
• what goes in private vs public discussions?