Update README.md

README.md

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-# Dataset Card for "EB 7"
+# Dataset Card for "EB 7"
+_Encyclopædia Britannica_ is the most prestigious reference work in English. 
+This dataset contains the text of the entries from the 7th edition as well extracted geographical 
+coordinates.
+
+The original text comes from the [Nineteenth-Century Knowledge Project](https://tu-plogan.github.io/source/r_7th_edition.html)