Update README.md

Author: Cirdans-Home

README.md

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 # NonLocalPageRank
 Matlab codes for the NonLocalPageRank Algorithm
 
-This repository contains the codes used for generating the examples in the paper : 
-- S. Cipolla, F. Durastante, F. Tudisco. Nonlocal PageRank - ESAIM: M2AN, Forthcoming article, DOI: [https://doi.org/10.1051/m2an/2020071](https://doi.org/10.1051/m2an/2020071) - [arXiv:2001.10421](https://arxiv.org/abs/2001.10421)
+This repository contains the codes used for generating the examples in the paper: 
+- S. Cipolla, F. Durastante, F. Tudisco. Nonlocal pagerank. ESAIM: M2AN, 55 1 (2021) 77-97 DOI: [10.1051/m2an/2020071](https://doi.org/10.1051/m2an/2020071) [arXiv:2001.10421](https://arxiv.org/abs/2001.10421)
 
 To run the code the implementation of the Power Method from https://www.cs.purdue.edu/homes/dgleich/codes/innout/ is needed.