Updated Building Micropython Binaries (markdown)

Building-Micropython-Binaries.md

@@ -5,7 +5,6 @@ Prerequisites to this are setting up your build environment. You can [get starte
 Assuming that you have a working environment and you can run **make** to make a build for Linux we can now explain the:
 * directory structure
 * making a build for an architecture
-* identify the firmware builds
 * flashing onto micropython hardware
 
 ## Directory Structure
@@ -48,13 +47,16 @@ And for the SF6 it would be:
 ### Compiling Your Own Python Code Into Firmware
 To make a firmware build with a python file that you have created, simply place in the **/modules** directory the python file you wish to be available in your firmware build. Hence if you wanted to have a **hello_world.py** compiled into your firmware image do: 
 - place the **hello_world.py** into your /ports/stm32/modules directory
-- do your buld with the command **FROZEN_MPY_DIR=modules
+- do your build with the command **FROZEN_MPY_DIR=modules
 
 e.g.
 ```bash
    /> make BOARD=PYBD_SF2 FROZEN_MPY_DIR=modules
 ```
 
+## Flashing Onto Micropython Hardware
+[Flashing onto is described here](https://github.com/micropython/micropython/wiki/Pyboard-Firmware-Update)
+