Update README.md

README.md

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-BigBanyanTree is an initiative to empower engineering colleges to set up their data engineering clusters and drive interest in data processing and analysis using tools such as Apache Spark.
+BigBanyanTree is an initiative to empower engineering colleges to set up their data engineering clusters and drive interest in data processing and analysis using tools such as Apache Spark.
+
+As part of that initiative, we have open-sourced datasets processed from CommonCrawl data.
+
+The datasets offer two subsets having the specified columns:
+"script_extraction": ["ip", "host", "server", "script_src_attrs"]
+"ipmaxmind": ["ip", "host", "server", "postal_code", "latitude", "longitude", "accuracy_radius", "continent_code", "continent_name", "country_iso_code", "subdivision_code", "city_name", "metro_code", "time_zone", "year"]