JSON requires escaped double quotes

When using JSON as part of a CLI command, the double quotes must be escaped or an error will occur. The problem is described here: https://github.com/Azure/azure-cli/issues/17436

The documentation shows the following:

**--logs
JSON encoded list of logs settings. Use '@{file}' to load from a file.**

The request is that you make it clear that double quotes must be escaped.
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#### Document Details

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* ID: b9ae3afa-74ff-12e8-a32c-c01240bd37da
* Version Independent ID: 522b7e55-2510-8e51-021a-2fc134fabfbe
* Content: [az monitor diagnostic-settings](https://docs.microsoft.com/en-us/cli/azure/monitor/diagnostic-settings?view=azure-cli-latest#az_monitor_diagnostic_settings_create)
* Content Source: [latest/docs-ref-autogen/monitor/diagnostic-settings.yml](https://github.com/MicrosoftDocs/azure-docs-cli/blob/master/latest/docs-ref-autogen/monitor/diagnostic-settings.yml)
* Service: **monitoring-and-diagnostics**
* GitHub Login: @rloutlaw
* Microsoft Alias: **routlaw**