Update README.md

Edited the readme file to make it compatible with the documentation principles

README.md

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-Swadesh lists with village granularity
+# About
+This is the code and the data for DagSwadesh project
+
+2021-02-14 K. Filatov, M. Daniel & all the contributors
+
+Linguistic Convergence Laboratory
+
+Last version could be found [here](https://github.com/LingConLab/dagswadesh/blob/master/README.md)
+# How to cite
+
+In English: 
+>Filatov, Konstantin & Michael Daniel (eds.). DagSwadesh: 100 Swadesh lists from Daghestan. An online database of basic vocabulary divergence across neighbour villages. Moscow: Linguistic Convergence Laboratory, HSE University.
+
+In Russian: 
+>К. В. Филатов, Даниэль, М. А. (ред.). DagSwadesh: Стословные списки Сводеша для языков Дагестана. Онлайн-база данных дивергенции базовой лексики близлежащих идиомов. Москва: Международная лаборатория языковой конвергенции, НИУ ВШЭ.
+
+# License
+
+The data of this project is licensed under the [Creative Commons Attribution 4.0 International](https://creativecommons.org/licenses/by/4.0/), and the underlying source code used to format and display that data is licensed under the [MIT license](https://github.com/github/choosealicense.com/blob/gh-pages/LICENSE.md).