add config for longcrawl

.gitattributes

@@ -57,6 +57,6 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
 # Video files - compressed
 *.mp4 filter=lfs diff=lfs merge=lfs -text
 *.webm filter=lfs diff=lfs merge=lfs -text
-
 data/heldout.zarr filter=lfs diff=lfs merge=lfs -text
 data/train.zarr filter=lfs diff=lfs merge=lfs -text
+val.bin filter=lfs diff=lfs merge=lfs -text

dataset-config.json

@@ -0,0 +1,16 @@
+{
+    "file_type": "zarr",
+    "features": {
+        "data": {
+            "dtype": "float32",
+            "shape": [
+                -1,
+                65536
+            ]
+        }
+    },
+    "splits": {
+        "train": "data/train.zarr",
+        "validation": "data/heldout.zarr"
+    }
+}