wlsunset: add page (#16269)

pages/common/wlsunset.md

@@ -0,0 +1,24 @@
+# wlsunset
+
+> Adjust the color temperature in Wayland compositors depending on the sunset/sunrise times.
+> More information: <https://manned.org/wlsunset>.
+
+- Automatically compute sunset/sunrise times based on the specified location:
+
+`wlsunset -l {{latitude}} -L {{longitude}}`
+
+- Manually set the sunset/sunrise times (time format: `HH:MM`):
+
+`wlsunset -s {{sunset_time}} -S {{sunrise_time}}`
+
+- Set the high and low temperatures (default: high - 6500, low - 4000):
+
+`wlsunset -T {{high_temp}} -t {{low_temp}}`
+
+- Set the animation time to `n` seconds (only applicable when using manual sunset/sunrise times):
+
+`wlsunset -d {{n}} -s {{sunset_time}} -S {{sunrise_time}}`
+
+- Set the gamma (default: 1.0):
+
+`wlsunset -g {{gamma_value}}`