message: Trivial wording change for tf.Variable documentation.
diff: @@ -304,7 +304,7 @@ class Variable(six.with_metaclass(VariableMetaclass,
  tf.cond(v, lambda: v.assign(False), my_false_fn) # Note: this is broken.
  ```
  - Here replacing adding `use_resource=True` when constructing the variable will
  + Here, adding `use_resource=True` when constructing the variable will
  fix any nondeterminism issues:
  ```
  @@ -1239,7 +1239,7 @@ class VariableV1(Variable):
  tf.cond(v, lambda: v.assign(False), my_false_fn) # Note: this is broken.
  ```
  - Here replacing adding `use_resource=True` when constructing the variable will
  + Here, adding `use_resource=True` when constructing the variable will
  fix any nondeterminism issues:
  ```
  v = tf.Variable(True, use_resource=True)
  