Add introduction to student-facing docs

docs/en_us/students/source/SFD_introduction.rst

+.. _Introduction:
+
+#################
+Introduction
+#################
+
+Welcome to edX! We're glad you're taking a course with us and we hope you're as 
+excited as we are about online learning.
+
+To make the transition to online learning easier, we've put together this guide 
+to introduce you to edX. The guide shows you what courses look like and
+answers common questions around getting started, participating in course 
+discussions, completing exercises in your course, and receiving a 
+certificate. This guide is still under development, and we encourage you to 
+submit feedback to `docs@edx.org <mailto://docs@edx.org>`_.
+
+Thanks for checking out this guide. We hope you enjoy your edX course!
+
+.. _Time Zones:
+
+************************
+A Note about Time Zones 
+************************
+
+As you work through your course, you'll see dates and times when new materials 
+are released and when homework assignments and exams are due. It's important to 
+remember that edX lists all times in universal coordinated time (UTC). 
+When you see a time in your course, we recommend that you use a time zone converter 
+to convert the UTC time to your local time. You can any converter that you want, 
+including one of the following time zone converters.
+
+`Time and Date Time Zone Converter <http://www.timeanddate.com/worldclock/converter.html
+>`_
+
+`Time Zone Converter <http://www.timezoneconverter.com/cgi-bin/tzc.tzc>`_
+
+
+.. _Browsers:
+
+************************
+Supported Browsers 
+************************
+
+EdX runs on the following browsers:
+
+* `Chrome <https://www.google.com/chrome>`_
+* `Firefox <https://mozilla.org/firefox>`_
+* `Internet Explorer <https://microsoft.com/ie>`_
+* `Safari <https://www.apple.com/safari>`_
+
+The edX platform is routinely tested and verified on the current
+and previous version of each of these browsers. We generally encourage the
+use of and fully support only the latest version.
+
+This information is updated as new major operating system and browser versions
+are released. All point releases are supported unless noted; occasional
+exceptions are based on specific bug fixes or feature updates.
+
+The following table shows current operating system and browser support for the edX
+platform.
+
+.. list-table::
+   :widths: 20 10 10 10 10 10
+   :header-rows: 1
+
+   * -
+     - Chrome
+     - Safari
+     - Firefox
+     - IE 9
+     - IE 10
+   * - Windows 7
+     - Yes
+     - N/A
+     - Yes
+     - Yes
+     - Yes
+   * - Mac OSX 10.8 or 10.9
+     - Yes
+     - Yes
+     - Yes
+     - N/A
+     - N/A
+

docs/en_us/students/source/change_log.rst

@@ -12,6 +12,8 @@ October 2014
 
    * - Date
      - Change
+   * - 10/28/14
+     - Added :ref:`Introduction` section
    * - 10/24/14
      - Added :ref:`Course Discussions` section
 

docs/en_us/students/source/index.rst

@@ -12,6 +12,7 @@ edX Guide for Students
    :maxdepth: 2
 
    change_log
+   SFD_introduction
    SFD_certificates
    SFD_mathformatting
    SFD_ORA