How to use chrome and internet explorer browser in RSpec Selenium WebDriver using Ruby Script

Initially RSpec Selenium WebDriver won’t support chrome and internet explorer browsers, so that we need to configure IEDriverServer & chromedriver.Please follow the given link,

The Error message will display like,
irb(main):002:0> Selenium::WebDriver.for :internet_explorer
Selenium::WebDriver::Error::WebDriverError: Unable to find standalone executable
. Please download the IEDriverServer from and place the executable on your PATH.