update readme

README.md

@@ -42,6 +42,8 @@ size_categories:
 - 10K<n<100K
 ---
 
-# MHTML Sources for NewsXLM dataset
+# MHTML Sources for [NewsXLM dataset](https://huggingface.co/datasets/ispras-crawlers/newsxlm)
 
-`mhtml` — MHTML snapshots of pages where `wtl-uid` and `wtl-parent-uid` attributes have been added to every element in \<body\>, following the [WTL algorithm](https://github.com/klarna-incubator/webtraversallibrary/blob/master/webtraversallibrary/js/get_element_metadata.js).
+**Columns Explanation**
+
+`mhtml`: MHTML snapshots of pages where `wtl-uid` and `wtl-parent-uid` attributes have been added to every element in \<body\>, following the [WTL algorithm](https://github.com/klarna-incubator/webtraversallibrary/blob/master/webtraversallibrary/js/get_element_metadata.js).