message: instructions how to install brew install caskroom/cask/gcc-arm-embedded on Mac OS added.
diff: @@ -31,6 +31,8 @@ To understand how TensorFlow Lite does this, you can look at the `TestInvoke()`
  Once you have downloaded the dependencies and got the x86/Linux build working, you can try building a version for the STM32F103 'bluepill' device. The following command will build the test and then run it on an emulator, assuming you have Docker installed:
  +*On Mac OS you need ot have ARM compiler installed, one way of doing so is with brew: brew install caskroom/cask/gcc-arm-embedded*
  +
  ```
  make -f tensorflow/lite/experimental/micro/tools/make/Makefile TARGET=bluepill test_micro_speech
  ```
  