Make it explicit that $EDITOR needs to be exported.
@@ -173,7 +173,9 @@ const DEFAULT_CONF_FILE: &str = r#"
#####################
# user defined verbs:
-# If $EDITOR isn't set on your computer, you should either set it
+# If $EDITOR isn't set on your computer, you should either set it using
+# something similar to
+# export EDITOR=/usr/bin/nvim
# or just replace it with your editor of choice in the 'execution'
# pattern.
# Example:
