Macos install imagepy readme for review

[Essie Chiang]

conda create -n medical python=3.6
conda activate medical
conda install -c conda-forge wxpython
conda install -c conda-forge python.app no need

git clone [e-mail]:Image-Py/imagepy.git
conda install -c conda-forge matplotlib
pip install scikit-image
pip install openpyxl
pip install numba ### very important
pip install Shapely

[徐溶锴]

thank you so much