Update Set-MgUserPhotoContent.md

Author: Agazoth

src/Users/v1.0/examples/Set-MgUserPhotoContent.md

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+### Example 1: Set a user's photo properties
+
+```powershell
+Set-MgUserPhotoContent -UserId f38d9efd-2743-42c9-b1a8-3623c5aba666 -InFile "C:\Pictures\MyProfile.png"
+
+```
+
+This example sets the profile photo properties for the specified user.