adding fountain framebuffer object sdk sample

Change-Id: I0156281baf450b4aafcd1d43bf5fd9ef8d4cb6cc
diff --git a/samples/RenderScript/FountainFbo/_index.html b/samples/RenderScript/FountainFbo/_index.html
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index 0000000..5508657
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+++ b/samples/RenderScript/FountainFbo/_index.html
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+<p>An example that renders many dots on the screen that follow a user's touch. The dots fall 
+to the bottom of the screen when no touch is detected. This example modifies
+the <a href="../Fountain/index.html">Fountain</a> sample to include rendering to a
+a framebuffer object as well as the default framebuffer.</p>
+
+
+