Update duckdb index files

.gitattributes

@@ -52,3 +52,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
+larryvrh--WikiMedia-v20210402-Ja_Zh-filtered/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

larryvrh--WikiMedia-v20210402-Ja_Zh-filtered/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:d722e4902097babe15700d46a2b85e162ec5265d38d21a6a4d47fde8c17dd1b6
+size 12857344