Show actual examples of the syntax to use for dbt retry

[dbeatty10]

Contributions

• I have read the contribution docs, and understand what's expected of me.

Link to the page on docs.getdbt.com requiring updates

https://docs.getdbt.com/reference/commands/retry

What part(s) of the page would you like to see updated?

From @graciegoheen here:

Hi! While this page shows example logs of retry running, it doesn't actual show the command syntax to use. Could we add some examples of that as well?

cc: @dbeatty10
relevant to this core bug issue where there's some confusion between --state and --target-path

Additional information

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