Fixed typo in Set-AzureRmVMOSDisk.md

Fixed typo in Set-AzureRmVMOSDisk.md

Author: MrRoundRobin

src/ResourceManager/Compute/Commands.Compute/help/Set-AzureRmVMOSDisk.md

@@ -152,8 +152,8 @@ Valid values are:
 Specify this option to create a virtual machine from a specialized disk.
 When you specify this option, do not specify the *SourceImageUri* parameter.
 Instead, use the Set-AzureRmVMSourceImage cmdlet.
-You must also use the use the *Windows* or *Linux* parameters to tell the azure2 platform the type of the operating system on the VHD.
-The *VhdUri* parameter is enough to tell the azure2 platform the location of the disk to attach. 
+You must also use the use the *Windows* or *Linux* parameters to tell the azure platform the type of the operating system on the VHD.
+The *VhdUri* parameter is enough to tell the azure platform the location of the disk to attach. 
 - FromImage.
 Specify this option to create a virtual machine from a platform image or a generalized user image.
 In the case of a generalized user image, you also need to specify the *SourceImageUri* parameter and either the *Windows* or *Linux* parameters to tell the Azure platform the location and type of the operating system disk VHD instead of using the **Set-AzureRmVMSourceImage** cmdlet.