Typo on upper bound first variable in create_grid_space script.

Author: gugarosa

examples/spaces/create_grid_space.py

@@ -9,7 +9,7 @@
 # Finally, we define the lower and upper bounds
 # Note that they have to be the same size as n_variables
 lower_bound = (0.5, 1)
-upper_bound = (2, 2)
+upper_bound = (2.0, 2)
 
 # Creating the GridSpace object
 s = GridSpace(n_variables=n_variables, step=step, lower_bound=lower_bound, upper_bound=upper_bound)