bison: fix description

entries/bison/__init__.py

@@ -19,7 +19,7 @@
 from .. import *
 
 title = "Bison dominance"
-description = """Dominance relations among a group of American bisons in the National Bison Range in Moiese Montana, observed in 1972. The two versions below are equivalent.[^icon]
+description = """Dominance relations among a group of American bisons in the National Bison Range in Moiese Montana, observed in 1972.[^icon]
 [^icon]: Description obtained from the [ICON](https://icon.colorado.edu) project."""
 tags = ['Social', 'Animal', 'Weighted']
 url = 'http://konect.cc/networks/moreno_bison'