Dockerize repo, create Dockerfile, docker-compose.yml and update README.md (#17)

---

For more details, open the [Copilot Workspace session](https://copilot-workspace.githubnext.com/jina-ai/node-DeepResearch?shareId=XXXX-XXXX-XXXX-XXXX).

Dockerfile

@@ -0,0 +1,28 @@
+# Use Node.js 20 as the base image
+FROM node:20
+
+# Set the working directory
+WORKDIR /app
+
+# Copy package.json and package-lock.json
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy the application code
+COPY . .
+
+# Set environment variables
+ENV GEMINI_API_KEY=${GEMINI_API_KEY}
+ENV JINA_API_KEY=${JINA_API_KEY}
+ENV BRAVE_API_KEY=${BRAVE_API_KEY}
+
+# Build the application
+RUN npm run build
+
+# Expose the port the app runs on
+EXPOSE 3000
+
+# Set the default command to run the application
+CMD ["npm", "run", "serve"]

README.md

@@ -88,6 +88,25 @@ data: {"type":"progress","trackers":{"tokenUsage":74950,"tokenBreakdown":{"agent
 data: {"type":"progress","trackers":{"tokenUsage":88096,"tokenBreakdown":{"agent":77777,"read":10319},"actionState":{"action":"search","thoughts":"The provided text mentions several investors in Jina AI's funding rounds but doesn't specify ownership percentages.  A search focusing on equity stakes and ownership percentages held by each investor will provide the necessary information to answer the main question.","URLTargets":[],"answer":"","questionsToAnswer":[],"references":[],"searchQuery":"Jina AI investor equity percentage ownership stake"},"step":8,"badAttempts":0,"gaps":[]}}
 ```
 
+## Docker
+
+### Build Docker Image
+To build the Docker image for the application, run the following command:
+```bash
+docker build -t deepresearch:latest .
+```
+
+### Run Docker Container
+To run the Docker container, use the following command:
+```bash
+docker run -p 3000:3000 --env GEMINI_API_KEY=your_gemini_api_key --env JINA_API_KEY=your_jina_api_key --env BRAVE_API_KEY=your_brave_api_key deepresearch:latest
+```
+
+### Docker Compose
+You can also use Docker Compose to manage multi-container applications. To start the application with Docker Compose, run:
+```bash
+docker-compose up
+```
 
 ## How Does it Work?
 

docker-compose.yml

@@ -0,0 +1,13 @@
+version: '3.8'
+
+services:
+  app:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    environment:
+      - GEMINI_API_KEY=${GEMINI_API_KEY}
+      - JINA_API_KEY=${JINA_API_KEY}
+      - BRAVE_API_KEY=${BRAVE_API_KEY}
+    ports:
+      - "3000:3000"