Docs need to arrange Core Concepts in a logical workflow

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I am at Getting started with Great Expectations | Great Expectations

It has this list

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I am trying to understand the workflow. But these seem to be in an alphabetical order instead of a logical order which will help in understanding the workflow.

Currently the first sentence of Checkpoints and action at https://docs.greatexpectations.io/docs/reference/checkpoints_and_actionsis

The batch.validate() method evaluates one Batch of data against one Expectation Suite and returns a dictionary of Validation Results.

To a person totally new to great expectations that makes no sense. I guess it should be Data Context as the first one. Can you please suggest the correct sequence in which to read to make sense of the workflow?

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I already went through this great_expectations/getting_started.py at develop · great-expectations/great_expectations · GitHub

It does not help me understand how to run a checkpoint after going through the tutorial. Should I be storing checkpoint somewhere? Is there a CLI which I can use to run this checkpoint without the notebook?

I went through these commands to create checkpoint.

great_expectations --v3-api init
great_expectations --v3-api datasource new
great_expectations --v3-api suite new
great_expectations --v3-api checkpoint new my_checkpoint

But how do I run it without the notebooks?