Fix dataset preview (#1)

- Fix dataset preview (4027e25b6d1a6af262984d3b932654bd785fa3fc)


Co-authored-by: Quentin Lhoest <[email protected]>

unsplash-25k-photos.py

@@ -74,7 +74,7 @@ class Unsplash(datasets.GeneratorBasedBuilder):
         return [
             datasets.SplitGenerator(
                 name=datasets.Split.TRAIN,
-                gen_kwargs={"filepath": new_url+"/photos.tsv000"}
+                gen_kwargs={"filepath": os.path.join(new_url, "photos.tsv000")}
             ),
         ]