README.md in meilisearch-rails-0.2.1 vs README.md in meilisearch-rails-0.2.2

@@ -63,11 +63,11 @@
 
 To learn more about MeiliSearch, check out our [Documentation](https://docs.meilisearch.com/learn/tutorials/getting_started.html) or our [API References](https://docs.meilisearch.com/reference/api/).
 
 ## 🤖 Compatibility with MeiliSearch
 
-This package only guarantees the compatibility with the [version v0.20.0 of MeiliSearch](https://github.com/meilisearch/MeiliSearch/releases/tag/v0.20.0).
+This package only guarantees the compatibility with the [version v0.21.0 of MeiliSearch](https://github.com/meilisearch/MeiliSearch/releases/tag/v0.21.0).
 
 ## 🔧 Installation
 
 This package requires Ruby version 2.6.0 or later and Rails 5.2 or later.
 
@@ -205,17 +205,16 @@
 class Book < ApplicationRecord
   include MeiliSearch
 
   meilisearch do
     searchable_attributes [:title, :author, :publisher, :description]
-    attributes_for_faceting [:genre]
+    filterable_attributes [:genre]
     ranking_rules [
       'proximity',
       'typo',
       'words',
       'attribute',
-      'wordsPosition',
       'exactness',
       'desc(publication_year)'
     ]
     synonyms nyc: ['new york']
 
@@ -232,11 +231,11 @@
 ## 🔍 Custom search
 
 All the supported options are described in the [search parameters](https://docs.meilisearch.com/reference/features/search_parameters.html) section of the documentation.
 
 ```ruby
-Book.search('Harry', filters: 'author = J. K. Rowling')
+Book.search('Harry', attributesToHighlight: ['*'])
 ```
 👉 Don't forget that `attributes_to_highlight`, `attributes_to_crop`, and
 `crop_length` can be set up in the `meilisearch` block of your model.
 
 ## 🪛 Options
@@ -282,16 +281,16 @@
   include MeiliSearch
 
   meilisearch do
     attribute :first_name, :last_name
     attribute :full_name do
-      '#{first_name} #{last_name}'
+      "#{first_name} #{last_name}"
     end
     add_attribute :full_name_reversed
   end
 
   def full_name_reversed
-    '#{last_name} #{first_name}'
+    "#{last_name} #{first_name}"
   end
 
   def will_save_change_to_full_name?
     will_save_change_to_first_name? || will_save_change_to_last_name?
   end