Add dependent libraries to readme

[opfromthestart]

libxft-dev library is needed for

#include <X11/Xft/Xft.h>

and libxinerama-dev is needed for

#include <X11/extensions/Xinerama.h>

but it is not listed as a dependency in the readme.

[siduck]

for arch?

[LovecraftianGodsKiller]

I'm trying to build this on nobara (fedora-based) and I'm getting fatal error: X11/Xlib.h: No such file or directory

Both distros would be great as I tend to go back and forth between nobara and an arch-based distro pretty often.

[MinePro120]

On arch, that would be libx11 and libxinerama. Obviously, the package name of Xlib cannot be listed for every distro, but "Xlib" and "Xinerama" entries could be added to the README.