message: [Doc]: Fix
diff: @@ -44,11 +44,13 @@ def global_step(sess, global_step_tensor):
  """Small helper to get the global step.
  ```python
  - # Creates a variable to hold the global_step.
  + # Create a variable to hold the global_step.
  global_step_tensor = tf.Variable(10, trainable=False, name='global_step')
  - # Creates a session.
  + # Create a session.
  sess = tf.Session()
  - # Initializes the variable.
  + # Initialize the variable
  + sess.run(global_step_tensor.initializer)
  + # Get the variable value.
  print('global_step: %s' % tf.train.global_step(sess, global_step_tensor))
  global_step: 10
  