[add]: de-en pretrained encoder frozen logs

logs/de-en/pre-trained-encoder-frozen/events.out.tfevents.1645080170.6c76301b4a27.998.2

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:717c1556245e854243c13151c1370ea44223bf29c9387b0b0575ed220a4b0a19
+size 37605

logs/de-en/pre-trained-encoder-frozen/events.out.tfevents.1645082181.6c76301b4a27.998.3

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:40564951f092548df6e9a26c01059223aa0d03fa0d3db1b3f17f045338f0a679
+size 955

logs/de-en/pre-trained-encoder-frozen/hparams.yaml

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+label_smoothing: 0.2
+lr: 0.001
+pad_idx: 3
+warmup_steps: 500
+weight_decay: 0.001