README.md in u-attributes-0.7.0 vs README.md in u-attributes-0.8.0

@@ -78,10 +78,36 @@
 
 person = Person.new('name' => 'John', age: 20)
 
 puts person.name # John
 puts person.age  # 20
+
+#--------------#
+# #attribute() #
+#--------------#
+#
+# Use the #attribute() method with a valid attribute name to get its value
+
+puts person.attribute(:name) # John
+puts person.attribute('age') # 20
+puts person.attribute('foo') # nil
+
+#
+# If you pass a block, it will be executed only if the attribute is valid.
+
+person.attribute(:name) { |value| puts value } # John
+person.attribute('age') { |value| puts value } # 20
+person.attribute('foo') { |value| puts value } # !! Nothing happened, because of the attribute not exists.
+
+#--------------#
+# #attribute() #
+#--------------#
+#
+# Works like the #attribute() method, but will raise an exception when the attribute not exist.
+
+puts person.attribute!('foo')                   # NameError (undefined attribute `foo)
+person.attribute!('foo') { |value| puts value } # NameError (undefined attribute `foo)
 ```
 
 ### How to define multiple attributes?
 
 ```ruby
@@ -247,14 +273,14 @@
 
 To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
 
 ## Contributing
 
-Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/micro-attributes. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.
+Bug reports and pull requests are welcome on GitHub at https://github.com/serradura/u-attributes. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.
 
 ## License
 
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
 
 ## Code of Conduct
 
-Everyone interacting in the Micro::Attributes project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/[USERNAME]/micro-attributes/blob/master/CODE_OF_CONDUCT.md).
+Everyone interacting in the Micro::Attributes project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/serradura/u-attributes/blob/master/CODE_OF_CONDUCT.md).