message: Fix rendering of documentation of tf.contrib.summary.
diff: @@ -21,6 +21,7 @@ from @{tf.summary.merge_all} to @{tf.summary.FileWriter}.
  To use with eager execution enabled, write your code as follows:
  +```python
  global_step = tf.train.get_or_create_global_step()
  summary_writer = tf.contrib.summary.create_file_writer(
  train_dir, flush_millis=10000)
  @@ -30,9 +31,11 @@ with summary_writer.as_default(), tf.contrib.summary.always_record_summaries():
  tf.contrib.summary.scalar("loss", my_loss)
  # In this case every call to tf.contrib.summary.scalar will generate a record
  # ...
  +```
  To use it with graph execution, write your code as follows:
  +```python
  global_step = tf.train.get_or_create_global_step()
  summary_writer = tf.contrib.summary.create_file_writer(
  train_dir, flush_millis=10000)
  @@ -53,7 +56,7 @@ with tf.Session(...) as sess:
  while not_done_training:
  sess.run([train_op, tf.contrib.summary.all_summary_ops()])
  # ...
  -
  +```
  """
  from __future__ import absolute_import
  