Re-configured samples page.

src/site/samples/terminal/index.markdown

Index: src/site/samples/terminal/index.markdown
diff --git a/src/site/samples/terminal/index.markdown b/src/site/samples/terminal/index.markdown
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+---
+layout: default
+title: Emulating a terminal for working with the filesystem
+live_example_url: example/index.html
+
+header:
+  css: ["/samples/samples.css"]
+---
+
+## {{ page.title }}
+
+This sample ports the example used in
+[this HTML5Rocks
+article](http://www.html5rocks.com/en/tutorials/file/filesystem/#toc-samples-terminal)
+by Eric Bidelman about using the FileSystem APIs.
+
+This app replicates common UNIX filesystem operations such as cd, mkdir,
+rm, open, and cat using the FileSystem API.
+
+Read the
+[source](https://github.com/dart-lang/dart-samples/tree/master/web/html5/file/terminal).
+
+<iframe class="running-app-frame"
+        style="height:500px;width:100%;"
+        src="{{page.live_example_url}}">
+</iframe>
+
+See all [samples](/samples/)