docs/source/cli_usage.rst Typo

[pballew-chwy]

Documentation Update

https://github.com/jantman/awslimitchecker/blob/411ad9e734ddb16d87720ff5b994f19f47b8b098/docs/source/cli_usage.rst#overriding-limits

This section describes overriding limits for EC2 IPs, but shows commands for Autoscaling Groups.

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https://github.com/jantman/awslimitchecker/blob/411ad9e734ddb16d87720ff5b994f19f47b8b098/docs/source/cli_usage.rst#set-custom-thresholds

This section has a discrepancy between the described custom thresholds and the sample execution of said thresholds.