README.md in petrarca-0.5.15 vs README.md in petrarca-0.6.0

- old
+ new

@@ -3,18 +3,19 @@
 This library Petrarca provides some utility functions to manipulate ISBN numbers:
 
 - Validation
 - Calculate check digit
 - Mutual conversion of ISBN-13 and ISBN-10
-- Hyphenation
+- Hyphenation / Dehyphenation
+- Split to a array that includes ISBN segments
 
 All functions support both ISBN-13 and ISBN-10.
 
 All ranges of registration groups and registrants are supported.
 Those depends on 'RangeMessage.xml' file, downloaded from [International ISBN Agency](https://www.isbn-international.org/range_file_generation).
 
-NOTE: Updated range files to latest version on September 8, 2023.
+NOTE: Updated range files to latest version on December 30, 2023.
 
 ## Installation
 
 Add this line to your application's Gemfile:
 
@@ -42,13 +43,17 @@
     => "4-8156-0644-7"
     irb(main):005:0> Petrarca.to_13("4-8156-0644-7")
     => "978-4-8156-0644-2"
     irb(main):006:0> Petrarca.hyphenate("9784815606442")
     => "978-4-8156-0644-2"
+    irb(main):007:0> Petrarca.dehyphenate("978-4-8156-0644-2")
+    => "9784815605442"
+    irb(main):008:0> Petrarca.split("9784815606442")
+    => ["978", "4", "8156", "0644", "2"]
 
-Accept Integer as ISBN, only if no `-` and `X` including.
+`Petrarca.dehyphenate` and `Petrarca.split` are new in v0.6.0.
 
-New in v0.5.0.
+Accept Integer as ISBN, only if no `-` and `X` including. (New in v0.5.0)
 
     irb(main):001:0> require 'petrarca'
     => true
     irb(main):002:0> Petrarca.calc_check_digit(978481560644)
     => "2"