Update Docs related to installation of web drivers

Author: mdmintz

console_scripts/ReadMe.md

@@ -8,7 +8,8 @@ For running tests from the command line, [use **pytest** with SeleniumBase](http
 
 * Usage:
 ``seleniumbase install [DRIVER_NAME]``
-        (Drivers: chromedriver, geckodriver, edgedriver)
+        (Drivers: chromedriver, geckodriver, edgedriver,
+                  iedriver, operadriver)
 
 * Example:
 ``seleniumbase install chromedriver``
@@ -18,6 +19,8 @@ Installs the specified webdriver.
 (chromedriver is required for Google Chrome automation)
 (geckodriver is required for Mozilla Firefox automation)
 (edgedriver is required for Microsoft Edge automation)
+(iedriver is required for Internet Explorer automation)
+(operadriver is required for Opera Browser automation)
 
 ### mkdir
 

console_scripts/sb_install.py

@@ -2,7 +2,8 @@
 Installs the specified web driver.
 
 Usage:
-        seleniumbase install {chromedriver|geckodriver|edgedriver}
+        seleniumbase install {chromedriver|geckodriver|edgedriver|
+                              iedriver|operadriver}
 Output:
         Installs the specified webdriver.
         (chromedriver is required for Chrome automation)

help_docs/webdriver_installation.md

@@ -7,6 +7,8 @@ To run web automation, you'll need to download a web driver for each browser you
 seleniumbase install chromedriver
 seleniumbase install geckodriver
 seleniumbase install edgedriver
+seleniumbase install iedriver
+seleniumbase install operadriver
 ```
 
 If you plan on using the [Selenium Grid integration](https://github.com/seleniumbase/SeleniumBase/blob/master/integrations/selenium_grid/ReadMe.md) (which allows for remote webdriver), you'll need to put the drivers on your System PATH. On a Mac and Linux, ``/usr/local/bin`` is a good PATH spot. On Windows, you may need to set the System PATH under Environment Variables to include the location where you placed the driver files. As a shortcut, you could place the driver files into your Python ``Scripts/`` folder in the location where you have Python installed, which should already be on your System PATH.