diff --git a/README.md b/README.md
index 5d0f843..6ba67bf 100644
--- a/README.md
+++ b/README.md
@@ -37,22 +37,22 @@ Calling the `serialize` method on the returned object will serialize your `data`
 #### Available serialization option (`opts` argument)
 
 - **attributes**: An array of attributes to show. You can define an attribute as an option if you want to define some relationships (included or not).
-    - **ref**: If present, it's considered as a relationships.
-    - **included**: Consider the relationships as [compound document](http://jsonapi.org/format/#document-compound-documents). Default: true.
-    - **id**: Configurable identifier field for the resource. Default: `id`.
-    - **attributes**: An array of attributes to show.
-    - **topLevelLinks**: An object that describes the top-level links. Values can be *string* or a *function*
-    - **dataLinks**: An object that describes the links inside data. Values can be *string* or a *function* (see examples below)
-    - **dataMeta**: An object that describes the meta inside data. Values can be a plain value or a *function* (see examples below)
-    - **relationshipLinks**: An object that describes the links inside relationships. Values can be *string* or a *function*
-    - **relationshipMeta**: An object that describes the meta inside relationships. Values can be a plain value or a *function*
-    - **ignoreRelationshipData**: Do not include the `data` key inside the relationship. Default: false.
-    - **keyForAttribute**: A function or string to customize attributes. Functions are passed the attribute as a single argument and expect a string to be returned. Strings are aliases for inbuilt functions for common case conversions. Options include: `dash-case` (default), `lisp-case`, `spinal-case`, `kebab-case`, `underscore_case`, `snake_case`, `camelCase`, `CamelCase`.
-    - **nullIfMissing**: Set the attribute to null if missing from your data input. Default: false.
-    - **pluralizeType**: A boolean to indicate if the type must be pluralized or not. Default: true.
-    - **typeForAttribute**: A function that maps the attribute (passed as an argument) to the type you want to override. If it returns `undefined`, ignores the flag for that attribute. Option *pluralizeType* ignored if set.
-    - **meta**: An object to include non-standard meta-information. Values can be a plain value or a *function*
-    - **transform**: A function to transform each record before the serialization.
+- **ref**: If present, it's considered as a relationships.
+- **included**: Consider the relationships as [compound document](http://jsonapi.org/format/#document-compound-documents). Default: true.
+- **id**: Configurable identifier field for the resource. Default: `id`.
+- **attributes**: An array of attributes to show.
+- **topLevelLinks**: An object that describes the top-level links. Values can be *string* or a *function*
+- **dataLinks**: An object that describes the links inside data. Values can be *string* or a *function* (see examples below)
+- **dataMeta**: An object that describes the meta inside data. Values can be a plain value or a *function* (see examples below)
+- **relationshipLinks**: An object that describes the links inside relationships. Values can be *string* or a *function*
+- **relationshipMeta**: An object that describes the meta inside relationships. Values can be a plain value or a *function*
+- **ignoreRelationshipData**: Do not include the `data` key inside the relationship. Default: false.
+- **keyForAttribute**: A function or string to customize attributes. Functions are passed the attribute as a single argument and expect a string to be returned. Strings are aliases for inbuilt functions for common case conversions. Options include: `dash-case` (default), `lisp-case`, `spinal-case`, `kebab-case`, `underscore_case`, `snake_case`, `camelCase`, `CamelCase`.
+- **nullIfMissing**: Set the attribute to null if missing from your data input. Default: false.
+- **pluralizeType**: A boolean to indicate if the type must be pluralized or not. Default: true.
+- **typeForAttribute**: A function that maps the attribute (passed as an argument) to the type you want to override. If it returns `undefined`, ignores the flag for that attribute. Option *pluralizeType* ignored if set.
+- **meta**: An object to include non-standard meta-information. Values can be a plain value or a *function*
+- **transform**: A function to transform each record before the serialization.
 
 **Examples**