README.md in nina-0.1.1 vs README.md in nina-0.1.2

@@ -109,9 +109,21 @@
 instance.query.params.a # => 6
 instance.query.b # => 2
 instance.c # => nil
 ```
 
+We are copying callbacks from builder if had some defined
+```ruby
+builder_with_callbacks = builder.with_callbacks do |c|
+  c.params { _1.a = 1 }
+end
+builder_with_callbacks_with_callbacks = builder_with_callbacks.with_callbacks do |c|
+  c.params { _1.a += 1 }
+end
+instance = builder_with_callbacks.wrap
+instance.a # => 2
+```
+
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
 
 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 the created tag, and push the `.gem` file to [rubygems.org](https://rubygems.org).