Updated Variant IBUS (markdown)

Variant-IBUS.md

@@ -3,12 +3,12 @@ It will send all channels on a single wire like PPM, but is more reliable as it
 
 ⚠ Ibus telemetry is not handled by the firmware
 
-## Configuration/Parameters
+## :gear: Configuration/Parameters
 Ibus control is reusing some of the USART control parameters.<br>
 Use CONTROL_SERIAL_USART3 and FEEDBACK_SERIAL_USART3 for the right sensor cable(default), or CONTROL_SERIAL_USART2 and FEEDBACK_SERIAL_USART2 for left sensor cable.<br>
 IBUS_NUM_CHANNELS is the number of channels for IBUS and is 14 by default. As an example Flysky fs-i6ab or RX2A receivers are sending 14 channels even when used with a 6 channel transmitter<br>
 
-## Wiring:
+## :electric_plug: Wiring:
 * Connect your receiver VCC to 3.3v from programming port, 5v from hall sensor cable, or a voltage regulator, ⚠️ Red wire from sensor cable delivers 15v !!!
 * Connect IBUS/Servo port of your receiver to green wire on the cable selected in config.h
 * Connect the receiver to ground, ⚠️ On some boards, the black wire is 15v !!! Check with a multi-meter to make sure 15V and ground are not swapped
@@ -17,10 +17,10 @@ IBUS_NUM_CHANNELS is the number of channels for IBUS and is 14 by default. As an
 * Enable IBUS
 * Assign desired joystick to channel 1(steering) and channel 2(throttle)
 
-## Calibration:
+## :control_knobs: Calibration:
 Proceed with [calibration](https://github.com/EFeru/hoverboard-firmware-hack-FOC/wiki/Input-Calibration) for better control.  
 
-## Troubleshooting:
+## :toolbox: Troubleshooting:
 
 If the board is [beeping](https://github.com/EmanuelFeru/hoverboard-firmware-hack-FOC/wiki/Diagnostics)
 * Check the number of channels, even if you transmitter only handles 6 channels, you receiver might transmit more channels