docs: Update README.md farming edits

[barriebyron]

Description

README edits, see comments

I suggest that you use code fence tick marks for each command and then use plain text between

introduce each command and provide a transition before the output and resulting files

When showing a command, explain the command first by talking about what it does. Then show the command. Then show its output in a separate output block

closes part of #172

Tasks

• [ ]

References

see and apply the Technical content style guidance for Farming

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