Update the docs

Author: mdmintz

help_docs/features_list.md

@@ -1,6 +1,6 @@
 <a id="feature_list"></a>
 ### ![http://seleniumbase.com](https://cdn2.hubspot.net/hubfs/100006/images/super_logo_tiny.png "SeleniumBase") **SeleniumBase Features:**
-* A versatile test automation framework for building & running Selenium scripts reliably.
+* A complete test automation framework for building & running reliable testing scripts.
 * Uses [Pytest](https://docs.pytest.org/en/latest/) and [Nose](http://nose.readthedocs.io/en/latest/) runners for test discovery, organization, execution, and logging.
 * Includes [console scripts](https://github.com/seleniumbase/SeleniumBase/blob/master/seleniumbase/console_scripts/ReadMe.md) that save you time by installing web drivers automatically, etc. 
 * Includes a [website tour builder](https://github.com/seleniumbase/SeleniumBase/blob/master/examples/tour_examples/ReadMe.md) for creating and running walkthroughs on any website.

help_docs/method_summary.md

@@ -150,6 +150,8 @@ self.download_file(file_url, destination_folder=None)
 
 self.save_file_as(file_url, new_file_name, destination_folder=None)
 
+self.save_data_as(data, file_name, destination_folder=None)
+
 self.get_downloads_folder(file)
 
 self.get_path_of_downloaded_file(file)