update anatomy auction snippets+ fix auction commands

[PiVortex]

• Updated auction snippets in the anatomy section so https://github.com/near-examples/auction-examples/tree/main can be deleted
• Fixed some errors in auction docs

[PiVortex]

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Current status: executed

Reviewer	Score
@gagdiez	2

Your contribution is much appreciated with a final score of 2!
You have received 20 Sloth points for this contribution

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[gagdiez]

@race-of-sloths score 2