README.md

@@ -20,9 +20,8 @@ make
 
   * With vcpkg
 ```bash
-set CMAKE_TOOLCHAIN_FILE=<your vcpkg.cmake file location>
 mkdir build
 cd build
-cmake .. --preset=default
+cmake .. --preset=default -DCMAKE_TOOLCHAIN_FILE=<your vcpkg.cmake file location>
 ninja
 ```