config: Add documentation for 10 bit color displays

Add a note in Monitors.conf about 10 bit color displays and how it can
affect screen captures

config/hypr/UserConfigs/Monitors.conf

@@ -19,6 +19,11 @@ monitor=,preferred,auto,1
 #monitor = DP-1, preferred, auto, 1
 #monitor = HDMI-A-1, preferred,auto,1
 
+# NOTE: for monitors with 10 bit color displays, enable the depthbit,10 option.
+# Otherwise, screen captures might render a black screen
+
+# monitor=,preferred,auto,1,bitdepth,10
+
 # QEMU-KVM or any virtual box
 #monitor = Virtual-1, 1920x1080@60,auto,1