Configuration example for dynamic grid uses `msedge` instead of `MicrosoftEdge`

[JannisBush]

🐛 Bug Report

The example config.toml file in the readme for the dynamic grid setup configures the edge containers as msedge instead of the new name MicrosoftEdge. If one uses EdgeOptions() from selenium 4, one cannot directly connect to these containers (one can change browserName as a workaround`).

To Reproduce

• Start the docker-compose-v3-dynamic-grid.yml using the config.toml from the readme.
• Start a script using selenium 4 and EdgeOptions
• Capability cannot be fulfilled

Expected behavior

Edge Container should successfully start/names in this repository and other selenium repositories should be consistent.

Changing {\"browserName\": \"msedge\"}" to {\"browserName\": \"MicrosoftEdge\"}" in config.toml fixes the problem.

Test script reproducing this issue

import os
from selenium import webdriver

grid_url = "http://localhost:4444/wd/hub"
def get_driver():
    return webdriver.Remote(
        command_executor=grid_url,
        options=webdriver.EdgeOptions())

try:    
    driver = get_driver()
    try:
        driver.get("https://example.com")
    except Exception as e:
        print(e)
finally:
    try:
        driver.quit()
    except Exception as e:
        print("Fatal error", e)

Environment

OS: Linux
Docker-Selenium image version: 4.0.0-beta-3
Python-selenium version: 4.0.0b3