Documentation syntax highlighting

Readme.md

@@ -20,26 +20,27 @@ Homie Schild Firmware
 
 ## Color
 To convert RGB value use the following bash code:
-```bash
+```shell
 function rgbToColor {   
   echo $(( $(($1<<16)) + $(($2<<8)) + $(($3))  ));
-}
+} 
 
 function colorToRGB {
   echo "Red:    $(($1>>16&0xff))"
   echo "Green:  $(($1>>8&0xff))"
   echo "Blue:   $(($1&0xff))"
 }
+
 ```
 #### Example
 RGB Value to color uint32_t
-```bash
+```shell
   bash$ rgbToColor 155 230 32
   10216992
   bash$
 ```
 uint32_t to RGB values
-```bash
+```shell
   bash$ colorToRGB 10216992
   Red:    155
   Green:  230
@@ -61,7 +62,7 @@ You can specify the color by set *color_0* and *color_1*
 Fades from effect color_0 to effect_color_1
 * **randomfade**
 Fades thru an alternating color pattern
-* **none** 
+* **none**
 Stop all effects
 
 ## Effect colors