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
+gavmac00--langchain-docs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

gavmac00--langchain-docs/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:eb6820a7060bcefda0c8aba497664f7248209a82f23f4e34f96f4af7e8b7016a
+size 12595200