Fixed Markdown typos.

docs/Compiling_STM32.md

@@ -7,32 +7,26 @@ Multiprotocol source can be compiled using the Arduino IDE using STM32 Core (Map
 On all modules with STM32F103 microcontroller, the program flash memory on the microcontroller is large enough to accommodate all the protocols.  You do not have to make choices on which protocols to upload.  Also, it is likely that you used the Banggood 4-in-1 RF module and you will therefore have access to all the RF modules.Now for programmng multimodule with STM32 chip  you have 2 options presented below.
 
 1. Compiling and flashing in Arduino IDE.
-
 1. Flashing precompiled binaries from [here](https://github.com/pascallanger/DIY-Multiprotocol-TX-Module/releases)
-
  - If using one of these TX with multimodule like Turnigy 9X,9XR,9X+ the binary file for flashing is **Multiprotocol_V1.X.X_STM32.bin**.
-
  - If using TARANIS TX the binary file  is **Multiprotocol_V1.X.X_STM32_INV.bin**
 
 Flashing precompiled **binaries** is done very simple with the cable setup presented below and an utility(GUI) **ST Flash Loader Demonstrator.**
 
+## Compiling source and flashing in Arduino.
 
-
-##Compiling source and flashing in Arduino.
-
-###Install the Arduino IDE and the Multiprotocol project
+### Install the Arduino IDE and the Multiprotocol project
 1. Download the Arduino IDE. The currently supported Arduino version is 1.6.11 available for [Windows]( https://www.arduino.cc/download_handler.php?f=/arduino-1.6.12-windows.exe) and [Mac OSX](http://arduino.cc/download_handler.php?f=/arduino-1.6.12-macosx.zip)
 1. It is recommended to upgrade Java to the [latest version](https://www.java.com/en/download/)
 1. Download the [STM32 Core](https://github.com/rogerclarkmelbourne/Arduino_STM32/archive/master.zip) and copy the Arduino_STM32 folder to:
   - OSX: ```Arduino.app/Contents/Java/hardware```  (you can open Arduino.app by Ctl Clicking on Arduino.app and selecting "Show Package Contents") 
   - Windows: ```C:\Program Files (x86)\Arduino\hardware``` 
   - Make sure the folder tree structure is like this .....\hardware\Arduino_STM32\.....and **NOT** ...... \hardware\Arduino_STM32-master\Arduino_STM32-master\......So move the folders /rename accordingly.
-  
 1. Download the zip file with the Multiprotocol module source code from [here](https://github.com/pascallanger/DIY-Multiprotocol-TX-Module)
 1. Unzip and copy the source code folder ```Multiprotocol``` to a folder of your choosing
 1. Click on the ```Multiprotocol.ino file``` in the ```Multiprotocol``` folder and the Arduino environment should appear and the Multiprotocol project will be loaded.
 
-###Prepare the Arduino IDE:
+### Prepare the Arduino IDE:
 
 1. In order to compile successfully you need also to modify a maple library file. In ```....\hardware\Arduino_STM32\STM32F1\cores\maple\libmaple\usart_f1.c``` comment out the 2 functions as shown below. This is required to have low-level access to the USART interrupt. 
 
@@ -50,7 +44,6 @@ Flashing precompiled **binaries** is done very simple with the cable setup prese
 **}**
 ***/**
  
- 
 1. Run the IDE, and on the **Tools** menu, select **Board** and then **Boards manager**. Click on the Arduino DUE (32 Bits ARM-Cortex M3) from the list of available boards. You must do this step, it installs the arm-none-eabi-g++ toolchain!
 1. Close and reopen the Arduino IDE and load the Multiprotocol project.
 1. In arduino IDE under the **Tools** -> **Board:** select the **Generic STM32F103C series** board
@@ -63,7 +56,7 @@ There are three options for flashing the firmware. But We will present here only
 The first (and strongly recommended) is flashing it while it is plugged into and powered by the transmitter.The second is preparing the board for flashing with a USB cable. 
 The second  method is definitely the easiest in the long-term, but it does require the USB bord and setting up the bootloader on the STM32 MCU.
 
-####Option 1: Flashing with Tx power(highly recommended)
+#### Option 1: Flashing with Tx power(highly recommended)
 
 1. Put the module in the Tx 
 1. Place a jumper over the BOOT0 pins.Skip this one if you made your own cable for flashing ,see below. 
@@ -71,7 +64,6 @@ The second  method is definitely the easiest in the long-term, but it does requi
   - Module RX pin to FTDI TX pin
   - Module TX pin to FTDI Rx pin
   - Module GND to FTDI GND 
-  
 1. In arduino IDE under the **Tools** -> **Board:** check that you have selected the **Generic STM32F103C series** board 
 1. Under **Tools** -> **Upload Method:** select **Serial** 
 1. Click "Upload" and the sketch will be uploaded normally.   This is valid for  all arduino versions. 
@@ -80,16 +72,15 @@ The second  method is definitely the easiest in the long-term, but it does requi
 If you have the module inside a box and to be inserted in TX bay, you may build a flashing cable like in the picture below.
 You can attach and solder a 5 pin header female and top outside the box.**ALways insert first the USB serial device in USB port , and TX start after.**
 
-[<img src="images/Multi_STM32_ flashing.jpg" />]
+<img src="images/Multi_STM32_ flashing.jpg" />
 
 See below my module for reference
 
-[<img src="images/Multi_STM32 module.JPG"  width="600" height="400" />]
+<img src="images/Multi_STM32 module.JPG"  width="600" height="400" />
 
-####Option 2: Flashing with USB cable.
+#### Option 2: Flashing with USB cable.
 
 This method use USB connector on the STM32 V1.0 board or on the maple clone board.  
-
 1. Install first maple USB driver by running the batch file found in Arduino STM32 package folder "..\hardware\Arduino_STM32\drivers\win\install_drivers.bat"  
 1. Download the free STM32 flash loader demonstrator from [ST.com](http://www.st.com/en/development-tools/flasher-stm32.html) and using a USB-TTL device (like FTDI cable) flash the STM32duino bootloader available from Roger Clark's great STM32 site [here](https://github.com/rogerclarkmelbourne/STM32duino-bootloader/tree/master/STM32F1/binaries) .Use bootloader **generic_boot20_pa1.bin**
 1. Open Arduino IDE,browse to multiprotocol folder,load the sketch multiprotocol.ino.