add mac os condition as stated on napi docs - https://github.com/nodejs/node-addon-api/blob/master/doc/setup.md
add mac os condition as stated on napi docs
- https://github.com/nodejs/node-addon-api/blob/master/doc/setup.md

nevermnd/anitomy-js,nevermnd/anitomy-js,nevermnd/anitomy-js