Update README.md

README.md

@@ -187,9 +187,11 @@ configs:
   data_files: data/CC-MAIN-2025-05/nld/*.parquet
 ---
 
-> **Raw CommonCrawl crawls, annotated with potential Creative Commons license information**
+> **Raw CommonCrawl crawls, annotated with Creative Commons license information**
 
-**The licensing information is extracted from the web pages based on whether they link to Creative Commons licenses but false positives may occur!** While further filtering based on the location type of the license should improve the precision (e.g. by removing hyperlink (a_tag) references), false positives may still occur. **See Recommendations and Caveats below!**
+This dataset is an effort to collect Creative Commons-licensed web data in one place.
+
+The licensing information is extracted from the web pages based on whether they link to Creative Commons licenses either overtly in `a` tags (like in the footer of Wikipedia) or in metadata fields indicating deliberate Creative Commons publication. **However, false positives may occur!** While further filtering based on the location type of the license should improve the precision (e.g. by removing hyperlink (a_tag) references), false positives may still occur. **See Recommendations and Caveats below!** Also see [Personal and Sensitive Information](#personal-and-sensitive-information).
 
 ## Code