docs: Custom route predicates

[gsjn]

a cosmetic suggestion:

config.add_route('num', '/{num}', custom_predicates=(num_one_two_or_three,))

repeated 'num' makes little confusing for beginners when try to understand the example.
num_one_two_or_three = any_of('num', 'one', 'two', 'three').

would be good if route name is different than segment_name.

config.add_route('route_num', '/{num}', custom_predicates=(num_one_two_or_three,))

http://docs.pylonsproject.org/projects/pyramid/1.0/narr/urldispatch.html#custom-route-predicates

[mcdonc]

Closed by 7edede0

[mcdonc]

Thank you, fixed!