Update train_trivium.txt: fixed chunker, regex, phase categorization

.gitattributes

@@ -61,3 +61,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 data/full_corpus.txt filter=lfs diff=lfs merge=lfs -text
 data/training_data.txt filter=lfs diff=lfs merge=lfs -text
 train.txt filter=lfs diff=lfs merge=lfs -text
+train_trivium.txt filter=lfs diff=lfs merge=lfs -text

train_trivium.txt

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:874057a5df9727ce6273243cc5fce432034fec91d4ee5cedd5ddc05ae01e7fdf
+size 11539626