Upload validation.json with git-lfs

.gitattributes

@@ -27,3 +27,4 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 *tfevents* filter=lfs diff=lfs merge=lfs -text
 train.json filter=lfs diff=lfs merge=lfs -text
 test.json filter=lfs diff=lfs merge=lfs -text
+validation.json filter=lfs diff=lfs merge=lfs -text

validation.json

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cfe6c61e78ce0a03bc9069e62eb0b373c7bd237155862708cfa75769d41a2793
+size 15388332