message: Forgot to save when rebase master
diff: # Improving Linear Models Using Explicit Kernel Methods
  Note: This document uses a deprecated version of @{tf.estimator},
  -<<<<<<< HEAD
  which has a different interface (see `tf.contrib.learn Estimator`).
  -=======
  -which has a @{tf.contrib.learn.estimator$different interface}.
  ->>>>>>> Fix several broken links in kernel method tutorials
  It also uses other `contrib` methods whose
  @{$version_compat#not_covered$API may not be stable}.
  