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
+jamescalam--langchain-docs-23-06-27/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

jamescalam--langchain-docs-23-06-27/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:6c4eb7acf182340d53f40b0266dca7d6168d41f91254e7187a6a9c684578512c
+size 5255168