Added libxi and libxfixes to the Arch Linux package recommendations

docs/README-linux.md

@@ -48,7 +48,7 @@ openSUSE Tumbleweed:
 
 Arch:
 
-    sudo pacman -S alsa-lib cmake hidapi ibus jack libdecor libthai fribidi libgl libpulse libusb libx11 libxcursor libxext libxinerama libxkbcommon libxrandr libxrender libxss libxtst mesa ninja pipewire sndio vulkan-driver vulkan-headers wayland wayland-protocols
+    sudo pacman -S alsa-lib cmake hidapi ibus jack libdecor libthai fribidi libgl libpulse libusb libx11 libxcursor libxext libxfixes libxi libxinerama libxkbcommon libxrandr libxrender libxss libxtst mesa ninja pipewire sndio vulkan-driver vulkan-headers wayland wayland-protocols
 
 
 Joystick does not work