docs: add a note about terminal key bindings

help.md

@@ -1,5 +1,20 @@
 # Flow Control: a programmer's text editor
 
+## Terminal configuration
+
+Most terminals have default keybindings that conflict with common editor
+commands. I highly recommend rebinding them to keys that are not generally
+used anywhere else.
+
+For Kitty rebinding `kitty_mod` by adding this line to your kitty.conf is
+usually enough:
+```
+kitty_mod ctrl+alt
+```
+
+For other editors you will probably have to disable or rebind them each
+individually. 
+
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