improve URL handling

README.md

@@ -15,10 +15,10 @@ dataset_info:
     dtype: string
   splits:
   - name: train
-    num_bytes: 3658884693
-    num_examples: 20164939
-  download_size: 1550964349
-  dataset_size: 3658884693
+    num_bytes: 3579885267
+    num_examples: 19738964
+  download_size: 1515158851
+  dataset_size: 3579885267
 configs:
 - config_name: default
   data_files:

data/train-00000-of-00004.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ca6c0784364e37a50c215ae499f698464ad2a0b2f467cf778556ec070806516e
-size 390289360
+oid sha256:38b6ecbbd3b1af1d8457512697f9ab97b54128d193ecac39b3904c514c3c4712
+size 381383944

data/train-00001-of-00004.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:52b94ae26f4e8cd94681a502d3569383e2f5653cd1ac8ebc96cb4edc8ef73f3d
-size 369054000
+oid sha256:38162ee4485c704c8ab67b6cf73bf8457cd303430aa22c281e868e8bfbd32ba2
+size 360493082

data/train-00002-of-00004.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:3350409efe8b8d2b850448f68bb7a73a8c254326ef42cc0517112bdef40319aa
-size 394281219
+oid sha256:b352c467a9f6c3af248d835fdd70f8b22c0e1588191e2e29a6b7243a00a01c5b
+size 385084486

data/train-00003-of-00004.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:4f19cb9a0073a02183b1b0de043ac1eb334b9f93a4b2eac111bc094abe8b631b
-size 397339770
+oid sha256:46000d9d4ef86a70255753e473c8d202bce51fedc5aaf114781958cac561cd16
+size 388197339