fix typoe on line 76

cell_benchmark.py

@@ -73,7 +73,7 @@ class Cellsegmentation(datasets.GeneratorBasedBuilder):
 
   def _generate_examples(self, files, masks, split):
     mask_path = os.path.basename(masks)
-    for i, path in enumereate(files):
+    for i, path in enumerate(files):
       file_name = os.path.basename(path)
       yield i, {
            "image": path,