Fix typo

Author: changeworld

articles/virtual-machines/linux/create-upload-openbsd.md

@@ -86,7 +86,7 @@ Now you can shut down your VM.
 
 
 ## Prepare the VHD
-The VHDX format is not supported in Azure, only **fixed VHD**. You can convert the disk to fixed VHD format using Hyper-V Manager or the Powershell [convert-vhd](/powershell/module/hyper-v/convert-vhd) cmdlet. An example is as following.
+The VHDX format is not supported in Azure, only **fixed VHD**. You can convert the disk to fixed VHD format using Hyper-V Manager or the PowerShell [convert-vhd](/powershell/module/hyper-v/convert-vhd) cmdlet. An example is as following.
 
 ```powershell
 Convert-VHD OpenBSD61.vhdx OpenBSD61.vhd -VHDType Fixed