selenium setup for chrome node code example

Example: selenium/node-chrome

version: "3"services:  hub:    image: selenium/hub    ports:      - "4444:4444"    environment:      GRID_MAX_SESSION: 16      GRID_BROWSER_TIMEOUT: 3000      GRID_TIMEOUT: 3000  chrome:    image: selenium/node-chrome    container_name: web-automation_chrome    depends_on:      - hub    environment:      HUB_PORT_4444_TCP_ADDR: hub      HUB_PORT_4444_TCP_PORT: 4444      NODE_MAX_SESSION: 4      NODE_MAX_INSTANCES: 4    volumes:      - /dev/shm:/dev/shm    ports:      - "9001:5900"    links:      - hub  firefox:    image: selenium/node-firefox    container_name: web-automation_firefox    depends_on:      - hub    environment:      HUB_PORT_4444_TCP_ADDR: hub      HUB_PORT_4444_TCP_PORT: 4444      NODE_MAX_SESSION: 2      NODE_MAX_INSTANCES: 2    volumes:      - /dev/shm:/dev/shm    ports:      - "9002:5900"    links:      - hub