Add the missing critical info for the two BitLocker cmdlets

[skycommand]

PR Summary

This PR modifies the docs for Add-BitLockerKeyProtector.md and Enable-BitLocker.md to add critical information that was previously missing. Both cmdlets have a -RecoveryPassword parameter that accepts a 48-digit recovery password. However, a recovery password has rigid requirements. It must consist of 48 digits. Each six digit must be divisible by eleven (11). For example, the following is acceptable:

'147279-525107-204677-117612-367510-356554-273911-527274'

The following is not acceptable:

'702510-071786-013337-543770-555603-414075-635673-114355'

PR Checklist

• [X] Descriptive Title: This PR's title is a synopsis of the changes it proposes.
• [X] Summary: This PR's summary describes the scope and intent of the change.
• [X] Contributor's Guide: I have read the contributors guide.
• [X] Style: This PR adheres to the style guide.

[learn-build-service-prod[bot]]

Learn Build status updates of commit 5d18051:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
docset/winserver2012-ps/bitlocker/Add-BitLockerKeyProtector.md	:white_check_mark:Succeeded	View (winserver2012-ps)
docset/winserver2012-ps/bitlocker/Enable-BitLocker.md	:white_check_mark:Succeeded	View (winserver2012-ps)
docset/winserver2012r2-ps/bitlocker/Add-BitLockerKeyProtector.md	:white_check_mark:Succeeded	View (winserver2012r2-ps)
docset/winserver2012r2-ps/bitlocker/Enable-BitLocker.md	:white_check_mark:Succeeded	View (winserver2012r2-ps)
docset/winserver2016-ps/bitlocker/Add-BitLockerKeyProtector.md	:white_check_mark:Succeeded	View (WindowsServer2016-ps)
docset/winserver2016-ps/bitlocker/Enable-BitLocker.md	:white_check_mark:Succeeded	View (WindowsServer2016-ps)
docset/winserver2019-ps/bitlocker/Add-BitLockerKeyProtector.md	:white_check_mark:Succeeded	View (WindowsServer2019-ps)
docset/winserver2019-ps/bitlocker/Enable-BitLocker.md	:white_check_mark:Succeeded	View (WindowsServer2019-ps)
docset/winserver2022-ps/bitlocker/Add-BitLockerKeyProtector.md	:white_check_mark:Succeeded	View (WindowsServer2022-ps)
docset/winserver2022-ps/bitlocker/Enable-BitLocker.md	:white_check_mark:Succeeded	View (WindowsServer2022-ps)

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