Prompt user to exit Powershell so window doesn't close automatically

public/hackatime/setup.ps1

@@ -49,4 +49,6 @@ try {
 } catch {
   Write-Error "Error sending heartbeat: $($_.Exception.Response.StatusCode.Value__) $($_.Exception.Message)"
   exit 1
-} 
+} 
+
+Read-Host -Prompt "Press Enter to exit..."