Update mount.md

[fluffylea]

Make the docs of parameter casesensitive match what the actual mount command expects. It was missing the yes and no options, without those the command doesn't work.

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WindowsServerDocs/administration/windows-commands/mount.md	✅Succeeded

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[ttorble]

#assign: @robinharwood, @Xelu86

@robinharwood @Xelu86

Can you review the proposed changes?

#label:"aq-pr-triaged"

@MicrosoftDocs/public-repo-pr-review-team

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Users xelu86 are already assigned.