update the readme

readme.md

@@ -4,25 +4,37 @@ Based on 'german-kinergo' by Christoph Schmitz, as well as the "german" layout f
 [qmk_firmware](https://github.com/qmk/qmk_firmware).
 
 
-### Default Layer
+#### Default Layer
 A basic QWERTZ layout with some nice tweaks and SHIFT on the thumbs
 
 
-### Code & Symbol Layer
+#### Code & Symbol Layer
 All the symbols in one layer
 
 TODO: QKM has some problems with rapid shifted/non-shifted keystrokes (like '<> , +* , .: , etc.')
 
 
-### Mouse & Number Layer
+#### Mouse & Number Layer
 Mouse control and some 10key
 
 
-### Keyboard & Media Layer
+#### Keyboard & Media Layer
 Controls for the ergodox and some basic media-keys
 
 
 
+## Visualizer:
+This layout has a custom visualizer bundled in which can display custom bitmaps.
+
+The byte-arrays for the bitmaps can be found in `/res/bitmaps.c`.
+
+To generate an image array like these ensure the image is 128 x 32 or smaller.
+Convert the bitmap to a C array using a program like http://www.riuson.com/lcd-image-converter/ and
+ensure the conversion process produces a monochrome format array - 1 bit/pixel, left to right, top to bottom.
+
+Update array in the source at `/res/bitmap.c` code with the C array produced by the conversion program.
+
+
 ## Download:
 Download to:<br/>
 `#YOUR_QMK_ROOT/layouts/community/ergodox/malrichtig`