very minor update to readme.md to point to 17763 build and sdk instead of XXXX and 17738 SDK (#271)

Author: LPBourret

Samples/SqueezeNetObjectDetection/UWP/js/README.md

@@ -11,8 +11,8 @@ If you would like to use a different model, then you can use [Netron](https://gi
 
 
 - [Visual Studio 2017 Version 15.7.4 or Newer](https://developer.microsoft.com/en-us/windows/downloads)
-- [Windows 10 - Build XXXX or higher](https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewiso)
-- [Windows SDK - Build 17738 or higher](https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewSDK)
+- [Windows 10 - Build 17763 or higher](https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewiso)
+- [Windows SDK - Build 17763 or higher](https://developer.microsoft.com/en-US/windows/downloads/windows-10-sdk)
 
 ## Build the sample