Added build/README from @KrzysFR (#201)

build/README.md

@@ -0,0 +1,51 @@
+Here are a few command lines for reference :
+
+### Build with Visual Studio 2013 for msvcr120.dll
+
+Running the following command will build both the `Release Win32` and `Release x64` versions:
+```batch
+build\build.VS2013.cmd
+```
+The result of each build will be in the corresponding `build\bin\Release\{ARCH}\` folder.
+
+If you want to only need one architecture:
+- Win32: `build\build.generic.cmd VS2013 Win32 Release v120`
+- x64: `build\build.generic.cmd VS2013 x64 Release v120`
+
+If you want a Debug build:
+- Win32: `build\build.generic.cmd VS2013 Win32 Debug v120`
+- x64: `build\build.generic.cmd VS2013 x64 Debug v120`
+
+### Build with Visual Studio 2015 for msvcr140.dll
+
+Running the following command will build both the `Release Win32` and `Release x64` versions:
+```batch
+build\build.VS2015.cmd
+```
+The result of each build will be in the corresponding `build\bin\Release\{ARCH}\` folder.
+
+If you want to only need one architecture:
+- Win32: `build\build.generic.cmd VS2015 Win32 Release v140`
+- x64: `build\build.generic.cmd VS2015 x64 Release v140`
+
+If you want a Debug build:
+- Win32: `build\build.generic.cmd VS2015 Win32 Debug v140`
+- x64: `build\build.generic.cmd VS2015 x64 Debug v140`
+
+### Build with Visual Studio 2015 for msvcr120.dll
+
+You need to invoke `build\build.generic.cmd` with the proper arguments:
+
+**For Win32**
+```batch
+build\build.generic.cmd VS2015 Win32 Release v120
+```
+The result of the build will be in the `build\bin\Release\Win32\` folder.
+
+**For x64**
+```batch
+build\build.generic.cmd VS2015 x64 Release v120
+```
+The result of the build will be in the `build\bin\Release\x64\` folder.
+
+If you want Debug builds, replace `Release` with `Debug`.