golang.org redesign
R=r, rsc, gri
CC=golang-dev, iant, ken2, lvd, nigeltao_golang, stephenm
https://golang.org/cl/2182042
diff --git a/doc/playground.html b/doc/playground.html
new file mode 100644
index 0000000..a1cdb70
--- /dev/null
+++ b/doc/playground.html
@@ -0,0 +1,27 @@
+<!-- About the Go Playground -->
+
+<div class="left-column">
+<p>
+The Go Playground is a web service that runs on
+<a href="http://golang.org/">golang.org</a>'s servers.
+The service receives a Go program, compiles, links, and runs the program inside
+a sandbox, then returns the output.
+</p>
+
+<p>
+There are limitations to the programs that can be run in the Playground.
+They must be single-threaded (but they may use many goroutines).
+There are also limits on execution time, and CPU and memory usage.
+The Playground can access only a subset of the standard library
+(notably absent are network and filesystem access).
+Therefore, the only communication a Playground program has to the outside world
+is via standard output.
+</div>
+
+<div class="right-column">
+<script src="http://www.google.com/jsapi" type="text/javascript"></script>
+<div id="playground" class="small"></div>
+<script src="/doc/play/playground.js"></script>
+</div>
+
+<div class="end-columns"></div>
