docs: Update Node.js to v22 and usage examples in README.md

[mertssmnoglu]

Update examples to Node.js 22(LTS) and modernize Docker Compose syntax.

Description

Node.js Version

• Updated node:8 and node:16 image tags to node:22 in README.

Docker Compose

• I removed explicit version declaration, which is no longer required in docker compose.
• Synced the node version to 22.
• Switch command to array syntax for clarity.
• Align ports with Dockerfile example port 8888.
• Drop expose field for simplicity.

Motivation and Context

As a developer, I would like to see latest LTS version in the documentation with the up to date Docker Compose example.

Types of changes

• Documentation
• Version change (Update, remove or add more Node.js versions)
• Variant change (Update, remove or add more variants, or versions of variants)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Other (none of the above)

Checklist

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING.md document.
• All new and existing tests passed.

[mertssmnoglu]

I'm also thinking about updating docker compose example too. Is it OK to do it in this PR?

services:
  node:
    image: "node:22"
    environment:
      - NODE_ENV=production
    volumes:
      - ./:/home/node/app
    ports: # use if it is necessary to expose the container to the host machine
      - "8081:8081"
    command: ["npm", "start"]

[SimenB]

I'm also thinking about updating docker compose example too. Is it OK to do it in this PR?

services:
  node:
    image: "node:22"
    environment:
      - NODE_ENV=production
    volumes:
      - ./:/home/node/app
    ports: # use if it is necessary to expose the container to the host machine
      - "8081:8081"
    command: ["npm", "start"]

Yes please 🙂

[PeterDaveHello]

@coderabbitai, could you provide a better PR subject and description?

[PeterDaveHello]

Summary from GitHub Copilot:

This pull request updates the Node.js version used in the Docker configurations and examples within the README.md file. The changes ensure consistency across the documentation and upgrade the Node.js version to 22.

Updates to Node.js version in Docker configurations:

• Updated the Node.js base image in the Dockerfile example from node:16 to node:22. (README.md, README.mdL55-R55)
• Modified the Docker Compose example to use node:22 as the image, updated the exposed port to 8888, and adjusted the command syntax to use an array format. (README.md, README.mdL70-R79)
• Updated the standalone Docker command example to use node:22 instead of node:8. (README.md, README.mdL108-R103)

[PeterDaveHello]

Please also include any related changes in the PR title and description, not just the Node.js version. Thank you.

[mertssmnoglu]

Hi @PeterDaveHello I updated the title and description. Sorry for the untested changes like deleting user and working_dir specifications. I suggest accepting the Copilot's commit #2243 (comment)

[PeterDaveHello]

@mertssmnoglu no problem, just let me know when it's ready.

[mertssmnoglu]

@mertssmnoglu no problem, just let me know when it's ready.

It's ready right now.

[Copilot]

Pull Request Overview

Updates the Node.js documentation to use version 22 (LTS) instead of older versions and modernizes Docker Compose syntax to follow current best practices.

• Updated Node.js version references from v8/v16 to v22 across all examples
• Modernized Docker Compose configuration by removing deprecated version field and improving syntax
• Aligned port configurations between Dockerfile and Docker Compose examples for consistency

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