Update README.md for new release

README.md

@@ -16,7 +16,7 @@ products:
 
 | Holographic Remoting version |
 :-----------------: |
-| 2.9.3 |
+| 2.9.4 |
 
 The [Holographic Remoting Samples](https://github.com/microsoft/MixedReality-HolographicRemoting-Samples) repository hosts sample applications for [Holographic Remoting](https://docs.microsoft.com/en-us/windows/mixed-reality/holographic-remoting-player). The two remote samples show how to write an application for streaming content to a Microsoft HoloLens 2 or a PC running Windows Mixed Reality.