README: Drop mention of rubyforge, use https

README.md

@@ -4,47 +4,43 @@ iban-tools is a Ruby library for manipulating and validating IBAN account number
 
 ## Credit
 
-[Iulianu](http://github.com/iulianu) wrote [iban-tools](http://github.com/iulianu/iban-tools). We just removed use of `String#ord` for compatibility with Ruby 1.8 and 1.9 and of course pushed the built gem to gemcutter.
+[Iulianu](https://github.com/iulianu) wrote [iban-tools](https://github.com/iulianu/iban-tools). We just removed use of `String#ord` for compatibility with Ruby 1.8 and 1.9 and of course pushed the built gem to gemcutter.
 
-You'll find the [source code](http://github.com/iulianu/iban-tools) on Github. [Our fork](http://github.com/alphasights/iban-tools) is also available on GitHub
+You'll find the [source code](https://github.com/iulianu/iban-tools) on Github. [Our fork](https://github.com/alphasights/iban-tools) is also available on GitHub
 
 The gem should be compatible with Ruby 1.8.6, 1.8.7 and 1.9.1.
 
 ## INSTALLATION
 
-You'll need to add http://gems.rubyforge.com as a gem source if you don't already have it.
-
-You can accomplish this with the gemcutter gem.
-
-    gem install gemcutter
-    gem tumble
-
-Once you have the gemcutter source added you can install iban-tools with a simple gem install.
-
     gem install iban-tools
 
 ## USAGE
 
-    require 'rubygems'
-    require 'iban-tools'
+```ruby
+require 'iban-tools'
 
-    IBANTools::IBAN.valid?("GB82 WEST 1234 5698 7654 32")
-    => true
+IBANTools::IBAN.valid?("GB82 WEST 1234 5698 7654 32")
+=> true
+```
 
 Advanced usage, gives more detailed error messages
 
-    IBANTools::IBAN.new("XQ75 BADCODE 666").validation_errors
-    => [:unknown_country_code, :bad_check_digits]
+```ruby
+IBANTools::IBAN.new("XQ75 BADCODE 666").validation_errors
+=> [:unknown_country_code, :bad_check_digits]
+```
 
 Pretty print, canonicalize, and extract fields from an IBAN code
 
-    iban = IBANTools::IBAN.new(" ro49  aaaa 1B31007593840000")
+```ruby
+iban = IBANTools::IBAN.new(" ro49  aaaa 1B31007593840000")
 
-    iban.code
-    => "RO49AAAA1B31007593840000"
+iban.code
+# => "RO49AAAA1B31007593840000"
 
-    iban.country_code
-    => "RO"
+iban.country_code
+# => "RO"
 
-    iban.prettify
-    => "RO49 AAAA 1B31 0075 9384 0000"
+iban.prettify
+# => "RO49 AAAA 1B31 0075 9384 0000"
+```