Ensure SDK version is correctly specified in the upload build step.

Signed-off-by: Danilo Aimini <[email protected]>

MPSGameLift/Documentation/GameLift.md

@@ -204,7 +204,7 @@ Builds are tied to Fleets; you may want to delete the existing build and fleet v
 ---
  
 ```sh
-aws gamelift upload-build --operating-system WINDOWS_2016 --build-root C:\GameLiftPackageWindows\ --name MultiplayerSample --build-version v1.0 --region <Region>
+aws gamelift upload-build --server-sdk-version 5.0.0 --operating-system WINDOWS_2016 --build-root C:\GameLiftPackageWindows\ --name MultiplayerSample --build-version v1.0 --region <Region>
 ```
 Record BuildId for the next step. Example: **build-1a23bc4d-456e-78fg-h9i0-jk1l23456789**