fix typos

source/Collection_Data_Types.rst

@@ -56,7 +56,7 @@ but not the references to this object, then the 2 variables x and y still refere
 compare with the exercise on string and integers:
 
 Since list are mutable, when ``+=`` is used the original list object is modified, so no rebinding of *x* is necessary.
-We can observe this using *id()* which give the memory adress of an object. This adress does not change after the
+We can observe this using *id()* which give the memory address of an object. This address does not change after the
 ``+=`` operation.
 
 .. note::