added usage documentation links to docstrings.

pypat/creational/pool.py

@@ -7,7 +7,8 @@ class Reusable(Originator, metaclass=ABCMeta):
     """
     An abstract reusable class.
 
-    External Object Pool Pattern documentation: U{https://en.wikipedia.org/wiki/Object_pool_pattern}
+    - External Usage documentation: U{https://github.com/tylerlaberge/PyPatterns/wiki/Creational-Pattern-Usage}
+    - External Object Pool Pattern documentation: U{https://en.wikipedia.org/wiki/Object_pool_pattern}
     """
     def __init__(self):
         """
@@ -28,7 +29,8 @@ class Pool(object):
     """
     An Object Pool design pattern implementation.
 
-    External Object Pool Pattern documentation: U{https://en.wikipedia.org/wiki/Object_pool_pattern}
+    - External Usage documentation: U{https://github.com/tylerlaberge/PyPatterns/wiki/Creational-Pattern-Usage}
+    - External Object Pool Pattern documentation: U{https://en.wikipedia.org/wiki/Object_pool_pattern}
     """
     def __init__(self, reusable_class, *args, **kwargs):
         """

pypat/creational/prototype.py

@@ -6,7 +6,8 @@ class Prototype(object):
     """
     Prototype design pattern abstract class.
 
-    External Prototype Pattern documentation: U{https://en.wikipedia.org/wiki/Prototype_pattern}
+    - External Usage documentation: U{https://github.com/tylerlaberge/PyPatterns/wiki/Creational-Pattern-Usage}
+    - External Prototype Pattern documentation: U{https://en.wikipedia.org/wiki/Prototype_pattern}
     """
     def prototype(self, **attributes):
         """

pypat/creational/singleton.py

@@ -4,7 +4,8 @@ class Singleton(type):
 
     Enforces any object using this metaclass to only create a single instance.
 
-    External Singleton Pattern documentation: U{https://en.wikipedia.org/wiki/Singleton_pattern}
+    - External Usage documentation: U{https://github.com/tylerlaberge/PyPatterns/wiki/Creational-Pattern-Usage}
+    - External Singleton Pattern documentation: U{https://en.wikipedia.org/wiki/Singleton_pattern}
     """
     __instance = None