Update sample templates for android-23 release

Converted "android-MNC" build target references (including
min/compile) to use "23" instead, to correspond with
recent SDK builds.

Includes source file refresh.

Change-Id: I441aba7b50d16179cc231531e6aeffd108cdd404
diff --git a/renderScript/RenderScriptIntrinsic/README.md b/renderScript/RenderScriptIntrinsic/README.md
index f2efbc9..838c5af 100644
--- a/renderScript/RenderScriptIntrinsic/README.md
+++ b/renderScript/RenderScriptIntrinsic/README.md
@@ -1,17 +1,50 @@
+
 Android RenderScriptIntrinsic Sample
-==============================
+===================================
 
 RenderScriptIntrinsic sample that demonstrates how to use RenderScript intrinsics.
 Creates several RenderScript intrinsics and shows a filtering result with various parameters.
 Also shows how to extends RedioButton with StateListDrawable.
 
+Introduction
+------------
+
+[RenderScript][1] is a framework for running computationally intensive tasks at high performance on Android. RenderScript is
+primarily oriented for use with data-parallel computation, although serial computationally intensive workloads can
+benefit as well.
+
+RenderScript **intrinsics** are built-in functions that perform well-defined operations often seen
+in image processing. Intrinsics provide extremely high-performance implementations of standard
+functions with a minimal amount of code.
+
+This sample shows how to access and use the blur, convolve, and matrix intrinsics:
+
+```java
+mScriptBlur = ScriptIntrinsicBlur.create(mRS, Element.U8_4(mRS));
+mScriptConvolve = ScriptIntrinsicConvolve5x5.create(mRS,
+        Element.U8_4(mRS));
+mScriptMatrix = ScriptIntrinsicColorMatrix.create(mRS,
+        Element.U8_4(mRS));
+```
+
+RenderScript intrinsics will usually be the fastest possible way for a developer to perform these operations. The
+Android team works closely with our partners to ensure that the intrinsics perform as fast as possible on their
+architectures — often far beyond anything that can be achieved in a general-purpose language.
+
+[1]: http://developer.android.com/guide/topics/renderscript/compute.html
+
 Pre-requisites
 --------------
 
-- Android SDK v20
-- Android Build Tools v20
+- Android SDK v23
+- Android Build Tools v22.0.1
 - Android Support Repository
 
+Screenshots
+-------------
+
+<img src="screenshots/main.png" height="400" alt="Screenshot"/> 
+
 Getting Started
 ---------------
 
@@ -42,7 +75,7 @@
 use this file except in compliance with the License.  You may obtain a copy of
 the License at
 
-  http://www.apache.org/licenses/LICENSE-2.0
+http://www.apache.org/licenses/LICENSE-2.0
 
 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS, WITHOUT