Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.jpeg filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 jokes.csv filter=lfs diff=lfs merge=lfs -text
+notsobad9527--chinese-joke/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

notsobad9527--chinese-joke/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7baf43d643291abe48daf7272b8caf4a7d29b990ed0db0a07b1a856a251eab8a
+size 5779456