Update readme.md to include project overview, setup instructions, directory structure, and usage with Docker for Node + TypeScript project.

Dockerfile

@@ -0,0 +1,14 @@
+FROM node:20-alpine
+
+WORKDIR /app
+
+COPY package.json package-lock.json* tsconfig.json ./
+RUN npm install --no-audit --progress=false
+
+COPY src ./src
+
+RUN npm run build && npm pack
+
+CMD ["node", "dist/index.js"]
+
+