Add Dockerfile to run Streamlit app

Dockerfile

@@ -0,0 +1,18 @@
+# Use official python image
+FROM python:3.10-slim
+
+# Set working directory
+WORKDIR /app
+
+# Copy requirements.txt and install
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy rest of the code
+COPY . .
+
+# Expose port
+EXPOSE 7860
+
+# Run Streamlit app
+CMD ["streamlit", "run", "streamlit_app.py", "--server.port", "7860", "--server.address", "0.0.0.0"]