Update documentation instructions to clarify inclusion of workflows and CI/CD pipelines in README.md

Author: jkordick

.github/instructions/documentation.instructions.md

@@ -11,6 +11,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 All documentation in the `docs/` directory should have a speaking filename and a **Last updated**: YYYY-MM-DD date at the top of the file. 
 
+Workflows and CI/CD pipelines should be mentioned in a short list on the bottom of the `README.md`. There is no deep dive documentation needed and they also do not need to be mentioned in the `CHANGELOG.md`.
+
 General rules:
 - clear, precise and technical tone, not promotional
 - avoid redundancies