Update Restart-VM.md

Updated the 2016 file as well

Author: msbemba

docset/winserver2016-ps/hyper-v/Restart-VM.md

@@ -217,7 +217,9 @@ Accept wildcard characters: False
 ```
 
 ### -Timeout
+Specifies the duration of the wait, in seconds. When the timeout elapses, **Restart-VM** returns to the command prompt, even if the virtual machine isn't restarted.
 
+This parameter is only valid with the `-Wait` parameter. The `-Timeout` parameter overrides the `-Wait` parameter's indefinite waiting period.
 
 ```yaml
 Type: Int32
@@ -247,7 +249,9 @@ Accept wildcard characters: False
 ```
 
 ### -Wait
+**Restart-VM** suppresses the PowerShell prompt and blocks the pipeline until the virtual machine has restarted. You can use this parameter in a script to restart the virtual machine and then continue to process when the restart is finished.
 
+The `-Wait` parameter waits indefinitely for the virtual machine to restart. You can use the `-Timeout` parameter to adjust the timing and the `-For` and `-Delay` parameters to wait for particular services to become available on the restarted virtual machine.
 
 ```yaml
 Type: SwitchParameter