[automerger skipped] Fix LSTM documentation am: e61b7b98c9
am: efc839974b -s ours
am skip reason: change_id Id011783e33672ae65dc6fe3784cb26feb832acf9 with SHA1 e0537f09fb is in history

Change-Id: I7639fab23e8be6f53f03e0180c8dedf3038927f4