Upload data files directly to the HF repository

Since the download links from sberquad.py are currently unavailable, I have uploaded the files directly to the repository.

data/dev_v1.0.json.gz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a9145c18e890e84fd070272fcaa607a688efd61debf36b89bc2b96654ac77d18
+size 1927670

data/origin_test.json.gz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5d24ee67e71ea95163342b72d8fb36914fa7d0b261b3552ed5824f355fe76963
+size 2725921

data/train_v1.0.json.gz

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5a05221fe35eb1b4fcd17b8acca1d957e12d098783d8e8a2ebb2348f6c437b0a
+size 5838123

sberquad.py

@@ -1,6 +1,7 @@
 # coding=utf-8
 """SberQUAD: Sber Question Answering Dataset."""
 
+import os
 import json
 
 import datasets
@@ -33,7 +34,7 @@ from the corresponding reading passage, or the question might be unanswerable. \
 Russian original analogue presented in Sberbank Data Science Journey 2017.
 """
 
-_URLS = {"train": "https://sc.link/PNWl", "dev": "https://sc.link/W6oX", "test": "https://sc.link/VOn9"}
+_URLS = {"train": os.path.join("data", "train_v1.0.json.gz"), "dev": os.path.join("data", "dev_v1.0.json.gz"), "test": os.path.join("data", "origin_test.json.gz")}
 
 
 class Sberquad(datasets.GeneratorBasedBuilder):