Adds custom Dockerfile

Dockerfile

@@ -0,0 +1,8 @@
+FROM python:3.9
+COPY . /app
+WORKDIR /app
+RUN apt-get update && xargs -r -a packages.txt apt-get install -y && rm -rf /var/lib/apt/lists/*
+RUN pip3 install --no-cache-dir -r requirements.txt
+RUN pip3 install --no-cache-dir streamlit==1.10.0 
+EXPOSE 8501
+CMD streamlit run app.py