Update duckdb index files

.gitattributes

@@ -53,3 +53,4 @@ 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
+honnuanand--langchain-docs-modules/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

honnuanand--langchain-docs-modules/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:bff98c6b95f7884fe84b67eae2594f3555c3a2695d14369b6408a428ea3f6f25
+size 2633728