title: Using Tensorboard to graph from a log directory
body: <p>Can anyone give me a quick and dirty tutorial about how to modify the code in the <a href="http://tensorflow.org/tutorials/mnist/beginners/index.md/" rel="nofollow">this MNIST tutorial</a> and <a href="http://tensorflow.org/tutorials/seq2seq/index.md" rel="nofollow">this seq2seq tutorial</a> to log things to a log directory which can then be used in TensorBoard? I didn't really understand the ones on the official site. </p>