update VIMTOKAK

VIMTOKAK

@@ -1,11 +1,16 @@
 Vi(m) to Kakoune:
 =================
 
-Most operations in Kakoune are reversed compared to Vim: In kak, you first
-select the text you want to act on, then you edit it. This way, things are
-much more consistent, as for example, kak does not need a key for delete
-character, the delete key handles this just fine as long as you did not
-select more than a character (but clearing selection is only one space away).
+Kakoune is inspired heavily by Vim, it strives to be as efficient as Vim,
+more consistent and simpler. A big differences is that a lot of special
+features in Vim just become regular interaction of basic features in
+Kakoune. 
+
+Operations and moves are reversed in Kakoune. First select whatever text
+you want to operate on, and then use an modifying operation. That makes
+things more consistent (Vim needs a separate x and d operation because
+of the operator -> move order, Kakoune only needs the d operation). That
+also allows more complex selections.
 
 delete a word:
  * vim: dw
@@ -23,6 +28,22 @@ global replace:
  * vim: :%s/word/replacement<ret>
  * kak: %sword<ret>creplacement<esc>
 
+Explanation: '%' selects the entire buffer, 's' opens a prompt for a
+regex, <ret> validates the regex and replace the selection with one
+per matches (hence, all occurences of word are selected). 'c' deletes
+the selection contents and enter insert mode, replacement is typed
+and <esc> goes back to normal mode.
+
+Note that the Kakoune version is one key less, and is not a special
+feature per se, but just a nice way Kakoune features work together.
+
+replace in current curly braces block:
+ * vim: viB:s/word/replacement<ret>
+ * kak: <a-i>Bsword<ret>creplacement<esc>
+
+Here again, we need to rely on another Vim special feature, visual
+mode.
+
 join line with next:
  * vim: J
  * kak: alt-J