Use alpine as the base container for the docker image
Use alpine as the base container for the docker image

instead of the standard python:3.5 image; this reduces the size from
over 700 MB to 85 MB.

rtzll/flask-todolist,0xfoo/flask-todolist,0xfoo/flask-todolist,polyfunc/flask-todolist,polyfunc/flask-todolist,rtzll/flask-todolist,rtzll/flask-todolist,0xfoo/flask-todolist,rtzll/flask-todolist,polyfunc/flask-todolist