Update duckdb index files

.gitattributes

@@ -54,3 +54,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *.webp filter=lfs diff=lfs merge=lfs -text
 dhmeltzer--ask-science-qg/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
 dhmeltzer--ask-science-qg/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
+dhmeltzer--ask-science-qg/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

dhmeltzer--ask-science-qg/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:90a0e3e004e2af275455a7145904dba56dd722547e38ea25e9f5b945e7aaca63
+size 544747520