Update on @ulupo feedback

Co-authored-by: Umberto Lupo <[email protected]>

gph/python/test/test_ripser.py

@@ -433,7 +433,7 @@ def test_unsupported_coefficient():
                coeff=gph_ripser.get_max_coefficient_field_supported()+1)
 
 
-def test_cocycles_in_persistance_pair():
+def test_cocycles_in_persistence_pair():
     """Test for a simple cocycle in a persistence pair
        The data and the results are taken from cocycles notebook of
        ripser.py package"""