doc: add initial version of values and prios doc

VALUES_AND_PRIORITIZAION.md

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+# Values and Priorities
+
+> Document Status: Proposal, Work In Progress
+
+## Context
+
+Define the `Technical` values shared by the project and their relatively priority
+that are applied when making tradeoffs.
+
+
+## Values and priority level
+
+- Prio 1 - Developer experience
+- Prio 2 - Stability
+- Prio 3 - Operational qualities
+- Prio 4 - Technology and API Currency
+
+## Value descriptions
+
+### Developer Experience
+  - Approachability (both technical and community)
+  - Great Documentation 
+
+### Stability
+  - Backwards compatibility
+  - Clear expectations set around support?
+  - LTS support for users still using older versions of Node 
+
+### Operational Qualities
+  - Performance
+    - Throughput, size, startup time
+  - Diagnostics 
+  - Security
+
+### Technology and API currency
+  - Up to date and current APIs and technologies
+  - Adoption of new technologies
+  - Web API compatibility, standards compliance
+
+## References
+
+[First pass at list of values](https://github.com/nodejs/next-10/issues/5)
+[Original priorities brainstorm document](https://docs.google.com/document/d/1sbO_zCn9n_JH2zuGtqNAahUhA_mGFA89DdAme8nEdsw)