Fixed inconsistencies in --help

[CmdP1rx]

resolves #10073

Problem

When using dbt --help, there are inconsistencies with punctuation and descriptions of files, with or without single quotes ' ', and flags with or without ticks `.

Specify the format of logging to the console and the log file. Use --log-format-file to configure the format for the log file differently than the console.

Whether or not to run 'dbt compile' as part of docs generation

Space-delimited listing of node properties to include as custom keys for JSON output (e.g. `--output json --output-keys name resource_type description`)

Specify number of threads to use while executing models. Overrides settings in profiles.yml.

Solution

I have fixed and formatted all help options. Now, files are using single quotes ' and commands and their parts are using single ticks `.
Examples:
Specify number of threads to use while executing models. Overrides settings in 'profiles.yml'.
Specify the format of logging to the log file by overriding the default value and the general `--log-format` setting.

Checklist

• I have read the contributing guide and understand what's expected of me
• I have run this code in development and it appears to resolve the stated issue
• This PR includes tests, or tests are not required/relevant for this PR
• This PR has no interface changes (e.g. macros, cli, logs, json artifacts, config files, adapter interface, etc) or this PR has already received feedback and approval from Product or DX
• This PR includes type annotations for new and modified functions

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