Modify some of ELINF405

Modify softserial port.
Define camera control pin.
Change esc serial port.

docs/boards/Board - ElinF405.md

@@ -1,28 +1,30 @@
 # Board - Elin F405
 
 ## Hardware Features
-* MCU 
+* MCU
     - STM32F405
-* IMU 
+* IMU
     - ICM-20602
-* Motor Outputs 
-    - 4~6 outputs
-* OSD 
-* VCP 
+* Motor Outputs
+    - 4 outputs
+* OSD
+* VCP
 * Hardware UARTS :
     - UART1 - Serial RX,
     - UART3 - Inverted Smart Port,
     - UART4 - General use
     - UART6 - General use
-* Black box 
+    - Soft Serial 1 - Smart Port
+    - Soft Serial 2 - ESC Telemetry
+* Black box
     - SPI 16MB
-* LED Strip 
-* Integrated Voltage Regulator 
+* LED Strip
+* Integrated Voltage Regulator
     - 5V , 3A
-* Include Load Switch (VTX Real Pit Mode) 
+* Include Load Switch (VTX Real Pit Mode)
     - -30V , -30A (VTX or LED On / Off)
 * Include Low Pass LC filter
-* Buttons 
+* Buttons
     - Boot
 
 ## Pinouts