Update README.md

README.md

@@ -28,10 +28,11 @@ Data sources come from the following categories:
 - Website IS (ĐH Quốc tế): is.vnu.edu.vn
 - Website Eduacation (ĐH Giáo dục): education.vnu.edu.vn
 - Website NXB ĐHQG: press.vnu.edu.vn 
-- Website ĐHQG HN: vnu.edu.vn (in progress)  
 List domain web crawler: https://shorturl.at/IeXbB
 2. CC100:  
-link to CC100 vi: https://huggingface.co/datasets/statmt/cc100  
+[link to CC100 vi](https://huggingface.co/datasets/statmt/cc100)  
 3. Vietnews:
-  link to bk vietnews dataset: https://github.com/ThanhChinhBK/vietnews  
+  [link to bk vietnews dataset](https://github.com/ThanhChinhBK/vietnews)
+4. C4_vi:
+  [link to C4_vi](https://huggingface.co/datasets/allenai/c4)