Include Windows build host example

Author: shoop

docs/input/docs/build-server-support/build-server/bamboo.md

@@ -5,20 +5,32 @@ Title: Bamboo
 
 If you use Bamboo then you will have to use GitVersion from the command line, as
 there is no actively supported app.  You can use the "Inject Bamboo Variables"
-task to read the GitVersion output back into Bamboo.  Below is a Linux example
+task to read the GitVersion output back into Bamboo. Below are two examples
 using the [.NET Core GitVersion global tool](https://www.nuget.org/packages/GitVersion.Tool/).
 
 ## Example
 
 ### Task: Script
 
+This script can be run on a Linux build host.
+
 **Script body**
 
 ```bash
 ~/.dotnet/tools/dotnet-gitversion > gitversion.txt
 sed -i '1d;26d;s/  //;s/"//g;s/,//;s/:/=/' gitversion.txt
 ```
 
+### Task: Script
+
+**Script body**
+
+This script can be run on a Windows build host using Powershell.
+
+```powershell
+(dotnet gitversion | ConvertFrom-Json).PSObject.Properties | ForEach-Object { Write-Output "$($_.Name)=$($_.Value)" } | Out-File -Encoding UTF8 -FilePath gitversion.txt
+```
+
 ### Task: Inject Bamboo variables Configuration
 
 **Required Properties**