:memo: Add commands to manually switch to/back Ergo-L

in Xorg

https://ergol.org/

Guides/keyboard.md

@@ -20,6 +20,22 @@ and get id. Then set up with :
 setxkbmap -device 13 -layout us
 ```
 
+### Ergo-L
+
+Replace compose key by `<>` key (ISO keyboard).
+
+```sh
+setxkbmap custom -option '' -option compose:102
+```
+
+### Dvorak programming
+
+Re-enable AltGr as a compose key.
+
+```sh
+setxkbmap us -variant dvp -option compose:ralt
+```
+
 ## In TTY
 
 Classical dvoark