[py] Fix typo in description of WebDriver class
@@ -103,7 +103,7 @@ class WebDriver(object):
:Attributes:
- session_id - String ID of the browser session started and controlled by this WebDriver.
- - capabilities - Dictionaty of effective capabilities of this browser session as returned
+ - capabilities - Dictionary of effective capabilities of this browser session as returned
by the remote server. See https://github.com/SeleniumHQ/selenium/wiki/DesiredCapabilities
- command_executor - remote_connection.RemoteConnection object used to execute commands.
- error_handler - errorhandler.ErrorHandler object used to handle errors.
