Closes #95: Fixing typo in example and changing default eval throttle_secs since this causes rapid re-evaluation in TF 1.9
Closes #95: Fixing typo in example and changing default eval throttle_secs since this causes rapid re-evaluation in TF 1.9

Resolving #61. Just changing `throttle_secs` from 1 to 30 in `tf.estimator.EvalSpec`.

PiperOrigin-RevId: 244016318

tensorflow/adanet,tensorflow/adanet