feat: Add Dockerfile for application containerization and update README to reflect Docker SDK.

Dockerfile

@@ -0,0 +1,23 @@
+FROM python:3.11-slim
+
+WORKDIR /app
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+# Copy requirements first to leverage cache
+COPY requirements.txt .
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy the rest of the application
+COPY . .
+
+# Expose the port Streamlit runs on
+EXPOSE 8501
+
+# Run the application
+CMD ["streamlit", "run", "streamlit_app.py", "--server.address", "0.0.0.0", "--server.port", "7860"]

README.md

@@ -3,7 +3,7 @@ title: Image Text Extractor
 emoji: 📄
 colorFrom: blue
 colorTo: indigo
-sdk: streamlit
+sdk: docker
 sdk_version: 1.28.0
 app_file: streamlit_app.py
 pinned: false