quad: update xsdk_workspace README

quad/xsdk_workspace/README.md

-# Branch for hardware/software designs for Quadcopter
+# XSDK Workspace
+
+This directory is reserved for XSDK projects.
+
+## Setup
+XSDK, being based on Ecplise, is rather fragile, so do yourself a favor
+and read this section so things get setup correctly.
+
+1. When you first open eclipse, select this directory, xsdk_workspace, as
+   your workspace (see what we did there?).
+
+2. When you get to your workbench, your project pane should be empty. To
+   add these projects, right-click on the project pane, and click on something
+   like "import projects".
+
+  1. Select "Import Existing Projects" (whereever that is)
+  2. And then select the xsd_workspace as the folder where you want to import
+     projects. Add them all.
+
+3. If things are going swimmingly, then you should be able to build everyhing
+   and be off on your merry embedded endeavors.
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