Update Install-ADDSDomainController.md

[PaulaTomasG]

Modifying example in "-LogPath" as it could cause DCPromo to fail as directory is non-empty, DCPromo needs to empty it out and permissions may prevent this operation. Sysvol and Database paths both use their full path defaults as examples in this document, so proposing the same for the Log directory.

[opbld30]

Docs Build status updates of commit c179a89:

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