message: Fix capitalization (on master)
diff: @@ -5,7 +5,7 @@ works. The units are as follows:
  ## High Level APIs
  - * @{$programmers_guide/eager}, which is the easiest way to use tensorflow.
  + * @{$programmers_guide/eager}, which is the easiest way to use TensorFlow.
  * @{$programmers_guide/estimators}, which introduces a high-level
  TensorFlow API that greatly simplifies ML programming.
  * @{$programmers_guide/datasets}, which explains how to
  