more information. first steps in markdown

keyboards/satan/keymaps/iso_split_rshift/readme.md

@@ -7,10 +7,24 @@ For the full Quantum feature list, see the parent readme.md.
 * heavily modified ISO (!) layout with split right shift key
 * spaceFn
 * Dual-Role keys:
+ | Original key     | when tapped   | when held     |
+ | ---------------- | ------------- | ------------- |
+ | Space            | Space         | layer change  |
+ | Caps lock        | Escape        | Control       |
+ | Tab              | Tab           | layer change  |
+ | Enter            | Enter         | Control       |
 * Lockable layer for LED functions and numpad
+* vim-style arrow keys on hjkl (spacefn layer)
+* corresponding Home/PgDn/PgUp/End on hjkl (tab layer)
+* bonus arrow keys in the bottom right corner on Alt/Win/Menu/rCtrl/Shift
+* more bonus arrow keys on wasd (spacefn layer)
+* media keys prev/next/play/vol+/vol- (spacefn layer)
+* formware bootloader button
 * WS2812 RGB Underglow Support (not needed anymore to solder directly to the atmega)
+* additional brackets that only work in german layout due to horrible placement
+in the default qwertz layout
 
 
 ### Additional Credits
 Keymap has been based on TerryMathews' fork of Aqoush's fork of qmk-satan-rgb. [here](https://github.com/TerryMathews/qmk-satan-rgb/tree/master/keyboard/satan)
-
+ce visualization of the layers [here](http://www.keyboard-layout-editor.com/#/gists/aba4e4396459ede85bc66a22cee88e48)