Minor wording improvements.

contrib/README

@@ -29,7 +29,7 @@ adddepend -
 	by Rod Taylor <rbt@rbt.ca>
 
 array -
-	Array iterator functions
+	Array iterator functions (now obsolete due to backend improvements)
 	by Massimo Dal Zotto <dz@cs.unitn.it>
 
 btree_gist -

contrib/array/README.array_iterator

@@ -27,6 +27,5 @@ Now do this instead:
     -- select tuples with all txt elements matching '^[A-Z]'
     select * from t where '^[A-Z]' ~ all (t.txt[1:3]);
 
-See the related section in the online documentation for more detail:
-    Table of Contents => Functions and Operators => Row and Array Comparisons
-
+See this section in the PostgreSQL documentation for more detail:
+    The SQL Language => Functions and Operators => Row and Array Comparisons