Redirect setup to overall workshop setup page

Closes #89

setup.md

@@ -3,26 +3,8 @@ layout: page
 title: Setup
 ---
 
-This lesson requires a working spreadsheet program. If you don't have a spreadsheet program already, you can use LibreOffice. It's a free, open source spreadsheet program.
-
-#### Windows
-
-- Download the Installer 
-  - Install LibreOffice by going to [the installation page](https://www.libreoffice.org/download/libreoffice-fresh/). The version for Windows should automatically be selected. Click Download Version X.X.X (whichever is the most recent version). You will go to a page that asks about a donation, but you don't need to make one. Your download should begin automatically.
-- Install LibreOffice 
-- Once the installer is downloaded, double click on it and LibreOffice should install.
-
-#### Mac OS X
-
-- Download the Installer 
-  - Install LibreOffice by going to [the installation page](https://www.libreoffice.org/download/libreoffice-fresh/). The version for Mac should automatically be selected. Click Download Version X.X.X (whichever is the most recent version). You will go to a page that asks about a donation, but you don't need to make one. Your download should begin automatically.
-- Install LibreOffice 
-- Once the installer is downloaded, double click on it and LibreOffice should install.
-
-
-#### Linux
-
-- Download the Installer 
-  - Install LibreOffice by going to [the installation page](https://www.libreoffice.org/download/libreoffice-fresh/). The version for Linux should automatically be selected. Click Download Version X.X.X (whichever is the most recent version). You will go to a page that asks about a donation, but you don't need to make one. Your download should begin automatically.
-- Install LibreOffice 
-- Once the installer is downloaded, double click on it and LibreOffice should install.
+This workshop is designed to be run on pre-imaged Amazon Web Services 
+(AWS) instances. All the software and data used in the workshop are 
+hosted on an Amazon Machine Image (AMI). For information about how to
+use the workshop materials, see the 
+[setup instructions](http://www.datacarpentry.org/genomics-workshop/setup.html) on the main workshop page.