added info about checking out gallium-0.1 for cell code
diff --git a/docs/cell.html b/docs/cell.html
index 407f712..f9915d6 100644
--- a/docs/cell.html
+++ b/docs/cell.html
@@ -31,6 +31,12 @@
<p>
The Cell driver source code is on the <code>gallium-0.1</code> branch of the
git repository.
+After you've cloned the repository, check out the branch with:
+</p>
+<pre>
+ git-checkout -b gallium-0.1 origin/gallium-0.1
+</pre>
+<p>
To build the driver you'll need the IBM Cell SDK (version 2.1 or 3.0).
To use the driver you'll need a Cell system, such as a PS3 running Linux,
or the Cell Simulator (untested, though).