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
+asheinin--The_Mathematical_Principles_of_Natural_Philosophy_1846/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

asheinin--The_Mathematical_Principles_of_Natural_Philosophy_1846/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:395c0fdd1d48bbb99f7dfe1a56b0fa07a6a06a5c3af3559be5b60464b558acd0
+size 4206592