Update 02_Getting_Started_with_WebDriver.md
Update 02_Getting_Started_with_WebDriver.md

Adding some color and examples around the benefits and drawbacks of certain locators
SeleniumHQ/docs,User253489/docs,SeleniumHQ/docs,User253489/docs,AJ-72/docs,AJ-72/docs,User253489/docs,AJ-72/docs,SeleniumHQ/docs