Update README.md

Author: Meychi

README.md

@@ -25,7 +25,7 @@ Platform
 Building
 --------
 
-* Open in Visual Studio 2013 (Community version is free),
+* Open in Visual Studio 2015 (Community version is free),
 * Click the solution and select "Release|x86" from "Active config" in Properties panel,
 * Build the entire solution, the built binary will run in standalone mode