README.md in powerpack-0.0.4 vs README.md in powerpack-0.0.5

@@ -5,11 +5,11 @@
 
 Powerpack offers some useful extensions to the standard Ruby classes (kind of like `ActiveSupport`, but less ambitious).
 
 ## Installation
 
-Add this line to your application's Gemfile:
+Add this line to your application's `Gemfile` (if you're using `bundler`, that is):
 
     gem 'powerpack'
 
 And then execute:
 
@@ -19,10 +19,13 @@
 
     $ gem install powerpack
 
 ## Extensions
 
+* [Array](http://rdoc.info/github/bbatsov/powerpack/Array)
+    * [#init](http://rdoc.info/github/bbatsov/powerpack/Array#init-instance_method)
+    * [#tail](http://rdoc.info/github/bbatsov/powerpack/Array#tail-instance_method)
 * [Hash](http://rdoc.info/github/bbatsov/powerpack/Hash)
     * [#symbolize_keys](http://rdoc.info/github/bbatsov/powerpack/Hash#symbolize_keys-instance_method)
 * [Numeric](http://rdoc.info/github/bbatsov/powerpack/Numeric)
     * [#pos?](http://rdoc.info/github/bbatsov/powerpack/Numeric#pos?-instance_method)
     * [#neg?](http://rdoc.info/github/bbatsov/powerpack/Numeric#neg?-instance_method)
@@ -30,9 +33,10 @@
     * [#blank?](http://rdoc.info/github/bbatsov/powerpack/String#blank?-instance_method)
     * [#format](http://rdoc.info/github/bbatsov/powerpack/String#format-instance_method)
     * [#strip_indent](http://rdoc.info/github/bbatsov/powerpack/String#strip_indent-instance_method)
     * [#strip_margin](http://rdoc.info/github/bbatsov/powerpack/String#strip_margin-instance_method)
     * [#squish](http://rdoc.info/github/bbatsov/powerpack/String#squish-instance_method)
+    * [#squish!](http://rdoc.info/github/bbatsov/powerpack/String#squish!-instance_method)
 
 ## Documentation
 
 A listing of the extensions provided by Powerpack is available
 [here](http://rdoc.info/github/bbatsov/powerpack).