Updated Compatible boards (markdown)

Compatible-boards.md

@@ -11,7 +11,7 @@ If using arduino-LoRa library then supported modules are SX1276/77/78/79.
 
 If your ESP32 board is compatible or has build in LoRa module then it should work without redefining pinouts, for custom shields there might be need to redefine pinouts to LoRa module if it differs (see further description in Software Setup section), currently pinouts are connected from LoRa to ESP32-WROOM as (SS/RST/DIO0 could be redefined in config.h):
 
-# Pinouts 
+# Default Pinouts 
 ![alt text](https://raw.githubusercontent.com/sh123/esp32_loraprs/master/images/pinouts.png)
 
 - Common SPI:
@@ -23,7 +23,7 @@ If your ESP32 board is compatible or has build in LoRa module then it should wor
   - RST/RESET: GPIO_26
   - DIO0/IRQ: GPIO_14
 
-# Boards 
+# SX127x Based Boards 
 ![alt text](https://raw.githubusercontent.com/sh123/esp32_loraprs/master/images/tracker.jpg)
 
 Supported (built-in screen is not used), just select board in **Arduino IDE->Tools->Board**, no need to redefine pinouts: