Add disclaimers to version of Node.js required, as Node.js v16 no longer supports 'sync' mode.
Update ChromeDriver and Selenium Standalone instructions to remove unneeded information regarding changing the path and hostname information.
- Changed
browser.optionstobrowser.configdue to a WebdriverIO update related to this issue: webdriverio/webdriverio#5939
- Various grammatical and spelling fixes
- Re-wrote conclusion in Chapter 3.1 to replace temporary information with final thoughts