Update docs

[yemeen]

clean up documentation and update old text

Description

removed todos, clarified some text, and added doc pages for ECTResult class

Motivation and Context

closes #63

How has this been tested?

no code changes

Types of changes

• [x ] Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• [ x] My code follows the code style of this project. (make clean)
• [x ] I have incremented the version number in the pyproject.toml file.
• I have added tests to cover my changes.
• [ x] All new and existing tests passed. (make tests)

[lizliz]

Thanks for the cleanup, Yemeen!