TensorFlow: more features, performance improvements, and doc fixes.

Changes:
- Add Split/Concat() methods to TensorUtil (meant for convenience, not
  speed) by Chris.

- Changes to linear algebra ops interface by Rasmus

- Tests for tensorboard by Daniel

- Fix bug in histogram calculation by Cassandra

- Added tool for backwards compatibility of OpDefs.  Tool
  Checks in history of opdefs and their changes, checks for
  backwards-incompatible changes.  All done by @josh11b

- Fix some protobuf example proto docs by Oliver

- Add derivative of MatrixDeterminant by @yaroslavvb

- Add a priority queue queue by @ebrevdo

- Doc and typo fixes by Aurelien and @dave-andersen

- Speed improvements to ConvBackwardFilter by @andydavis

- Improve speed of Alexnet on TitanX by @zheng-xq

- Add some host memory annotations to some GPU kernels by Yuan.

- Add support for doubles in histogram summary by @jmchen-g

Base CL: 108158338

1 files changed, 6 insertions, 2 deletions

diff --git a/tensorflow/g3doc/get_started/index.md b/tensorflow/g3doc/get_started/index.md
index 0c58b969c7..3fce5e9d89 100644
--- a/tensorflow/g3doc/get_started/index.md
+++ b/tensorflow/g3doc/get_started/index.md
@@ -1,4 +1,4 @@
-# Introduction <a class="md-anchor" id="AUTOGENERATED-introduction"></a>
+# Introduction
 
 Let's get you up and running with TensorFlow!
 
@@ -43,6 +43,10 @@ for step in xrange(0, 201):
 # Learns best fit is W: [[0.100  0.200]], b: [0.300]
 ```
 
+The first part of this code builds the data flow graph.  TensorFlow does not
+actually run any computation until the session is created and the `run`
+function is called.
+
 To whet your appetite further, we suggest you check out what a classical
 machine learning problem looks like in TensorFlow.  In the land of neural
 networks the most "classic" classical problem is the MNIST handwritten digit
@@ -67,7 +71,7 @@ these and charge ahead.  Don't worry, you'll still get to see MNIST -- we'll
 also use MNIST as an example in our technical tutorial where we elaborate on
 TensorFlow features.
 
-## Recommended Next Steps: <a class="md-anchor" id="AUTOGENERATED-recommended-next-steps-"></a>
+## Recommended Next Steps:
 * [Download and Setup](../get_started/os_setup.md)
 * [Basic Usage](../get_started/basic_usage.md)
 * [TensorFlow Mechanics 101](../tutorials/mnist/tf/index.md)