Add required dependencies to README

[eznix86]

fixes #22

3 required dependencies are missing to be able to install the project properly.

As for Mac OS (In my case Sonoma), I have to write byteswap.h to /usr/local/include/

#if defined(__APPLE__)
// Mac OS X / Darwin features
#include <libkern/OSByteOrder.h>
#define bswap_16(x) OSSwapInt16(x)
#define bswap_32(x) OSSwapInt32(x)
#define bswap_64(x) OSSwapInt64(x)
#endif

edit: 2 required dependencies are needed to be able to install the project properly.

[eznix86]

@jb55 curl removed