doc: add Game of Life to playground toys
R=golang-dev, dsymonds, r
CC=golang-dev
https://golang.org/cl/9961043
diff --git a/doc/root.html b/doc/root.html
index 8179267..e2d5341 100644
--- a/doc/root.html
+++ b/doc/root.html
@@ -31,6 +31,7 @@
<div class="toys">
<select>
<option value="hello.go">Hello, World!</option>
+ <option value="life.go">Conway's Game of Life</option>
<option value="fib.go">Fibonacci Closure</option>
<option value="peano.go">Peano Integers</option>
<option value="pi.go">Concurrent pi</option>
