docker to .docker

.docker/Dockerfile

@@ -0,0 +1,11 @@
+FROM docker.io/jupyter/base-notebook:lab-4.0.5
+
+COPY requirements.txt .
+
+# Install Python deps, the user approach is documented here:
+# https://pythonspeed.com/articles/multi-stage-docker-python/
+RUN pip install --user --no-cache-dir -r requirements.txt
+
+COPY --chown=jovyan:users . ${HOME}/work
+
+