Update build

README.md

@@ -8,9 +8,13 @@ Copy the include [folder](https://github.com/gabime/spdlog/tree/v1.x/include/spd
 
 #### Compiled version (recommended - much faster compile times)
 ```console
-$ git clone https://github.com/gabime/spdlog.git
+git clone https://github.com/gabime/spdlog.git
-$ cd spdlog && mkdir build && cd build
+cd spdlog
-$ cmake .. && make -j
+mkdir build
+cd build
+cmake ..
+cmake --build . --parallel
+cmake --install .
 ```
 see example [CMakeLists.txt](https://github.com/gabime/spdlog/blob/v1.x/example/CMakeLists.txt) on how to use.