keyd: add page (#16460)

pages/linux/keyd.md

@@ -0,0 +1,24 @@
+# keyd
+
+> Remap keys.
+> More information: <https://manned.org/keyd>.
+
+- Start and enable the `keyd` service:
+
+`systemctl enable keyd --now`
+
+- Display keypress information:
+
+`sudo keyd monitor`
+
+- Reset bindings and reload the configuration files in `/etc/keyd`:
+
+`sudo keyd reload`
+
+- List all valid key names:
+
+`keyd list-keys`
+
+- Create a temporary binding:
+
+`sudo keyd bind "{{pressed_key}} = {{output_key}}`