Document how to convert existing templates to CI components

Problem

As a user managing CI templates for my organization I would like to know what is the workflow and best practices to follow when converting templates to CI components.

Solution

Document how to convert templates used with various include types (local, project, remote, etc.) to use CI components. Documentation could include:

• How to replace CI env variables with include:inputs for passing dynamic data.
• How to create a CI component and its catalog resource project.
• Best practices for writing good CI components (avoid some of the top-level keywords, take stage as input, etc.).
• What a good README should contain.
• How to use semantic versioning for releases.
• Etc.