Feature 1453 create pdf user guide

[ksearight]

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• Do these changes include sufficient documentation updates, ensuring that no errors or warnings exist in the build of the documentation? [Yes]

• Do these changes include sufficient testing updates? [Yes]

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  If yes, describe the new output and/or changes to the existing output:
  

• Please complete this pull request review by August 31.
  

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[ksearight]

I've modified the settings to prevent the shifting of the ROC diagram past the section it is embedded in. I also merged in newer changes from develop and reconciled conflicts as well as replacing some UTF-8 characters (dashes).

[JohnHalleyGotway]

I approve of these changes.

• Browsed the code changes and don't see any obvious problems.
• Reviewed the PDF at this link: https://met.readthedocs.io/_/downloads/en/feature_1453_create_pdf_user_guide/pdf/
• Confirmed that the ROC diagram is now well-placed between sections 31.4.13 and 31.4.14.