Fix broken link pointing to transformers.ipynb (#268)
Fix broken link pointing to transformers.ipynb (#268)

Previous link appears to lead to nowhere

Closes https://github.com/tallamjr/tfexamples/issues/1

	modified:   community/en/position_encoding.ipynb
tensorflow/examples,tensorflow/examples,tensorflow/examples,tensorflow/examples,tensorflow/examples,tensorflow/examples,tensorflow/examples,tensorflow/examples,tensorflow/examples