README.md in wildcard_matchers-0.2.1 vs README.md in wildcard_matchers-0.3.0

@@ -40,9 +40,11 @@
  * hash_includes(:b) === { :a => 1 } #=> false
  * hash_includes(:a => Integer) === { :a => 1 } #=> true
  * hash_includes(:a => 2) === { :a => 1 } #=> false
 * is_a_member_of
  * is_a_member_of(0, 1) === 0 #=> true
+* bag_of
+ * sored array comparison (Note: each item should comparable with every other item)
 
 ### helpers
 * nil_or
  * nil_or(is_a_string) === nil #=> true
  * nil_or(is_a_string) === "a" #=> true