message: add how to clone comment
diff: @@ -109,7 +109,7 @@ After installing all of the above, open a Git Bash shell. Continue at section [B
  ## Building and Flashing the Firmware
  ### Building the firmware
  -* Make sure you have cloned the repository.
  +* Make sure you have cloned the repository. It is recommended that you use [git](https://help.github.com/articles/cloning-a-repository/) for this.
  * Navigate your terminal (windows: Git Bash/cygwin) to the ODrive/Firmware dir.
  * Run `make` in the `Firmware` directory.
  