Added a Dockerfile to starting a REPL for testing purposes (#7)

Author: mridang

Dockerfile

@@ -0,0 +1,15 @@
+FROM python:3.12-slim
+
+WORKDIR /app
+
+RUN pip install --no-cache-dir poetry
+
+COPY pyproject.toml poetry.lock* ./
+
+RUN poetry install --no-root
+
+COPY . .
+
+RUN poetry install
+
+CMD ["poetry", "run", "python"]