Update README/example to use the schema version-less header.

README.txt

@@ -2,7 +2,7 @@
 
 Add a comment summarizing the current schema to the top of each ActiveRecord model source file.
 
-  # Schema as of Sun Feb 26 21:58:32 CST 2006 (schema version 7)
+  # == Schema Information
   #
   #  id                  :integer(11)   not null
   #  quantity            :integer(11)   

lib/annotate_models.rb

@@ -46,7 +46,7 @@ module AnnotateModels
     end
 
     # Add a schema block to a file. If the file already contains
-    # a schema info block (a comment starting with "Schema as of ..."), remove it first.
+    # a schema info block (a comment starting with "== Schema Information"), remove it first.
     #
     # === Options (opts)
     #  :position<Symbol>:: where to place the annotated section in fixture or model file,