Added to contributors and citation and got rid of email in example

Author: nathanneike

CITATION.cff

@@ -72,6 +72,9 @@ authors:
     family-names: Fernandes Montesuma
     affiliation: Université Paris-Saclay & CEA-List
     orcid: 'https://orcid.org/0000-0003-3850-4602'
+  - given-names: Nathan
+    family-names: Neike
+    affiliation: Hi! PARIS
 identifiers:
   - type: url
     value: 'https://github.com/PythonOT/POT'

CONTRIBUTORS.md

@@ -58,6 +58,7 @@ The contributors to this library are:
 * [Laurène David](https://github.com/laudavid) (Low rank sinkhorn, Low rank Gromov-Wasserstein samples)
 * [Julie Delon](https://judelo.github.io/) (GMM OT)
 * [Samuel Boïté](https://samuelbx.github.io/) (GMM OT)
+* [Nathan Neike](https://github.com/nathanneike) (Sparse EMD solver)
 
 
 ## Acknowledgments

examples/plot_sparse_emd.py

@@ -14,8 +14,6 @@
 concentric circles dataset.
 """
 
-# Author: Nathan Neike <nathan.neike@example.com>
-# License: MIT License
 # sphinx_gallery_thumbnail_number = 2
 
 import numpy as np