credits updated

Author: barseghyanartur

CREDITS.rst

@@ -35,4 +35,4 @@ Contributors
 Thanks to the following people for their contributions:
 
 - [Jean-David Fiquet](https://github.com/barseghyanartur/django-elasticsearch-dsl-drf/commits?author=id13)
-  for initial work on the ``geo_distance`` lookup filter.
+  for his valuable contributions to the ``geo-spatial`` features.