Merge pull request #3 from liaden/missing-commas

Add missing commas

Author: sriniwasgr

README.md

@@ -159,7 +159,7 @@ json_string = MovieSerializer.new([movie, movie], options).serialized_json
 class MovieSerializer
   include FastJsonapi::ObjectSerializer
   set_type :movie  # optional
-  cache_options enabled: true cache_length: 12.hours
+  cache_options enabled: true, cache_length: 12.hours
   attributes :name, :year
 end
 ```
@@ -169,7 +169,7 @@ end
 Option | Purpose | Example
 ------------ | ------------- | -------------
 set_type | Type name of Object | ```set_type :movie ```
-cache_options | Hash to enable caching and set cache length | ```cache_options enabled: true cache_length: 12.hours```
+cache_options | Hash to enable caching and set cache length | ```cache_options enabled: true, cache_length: 12.hours```
 id_method_name | Set custom method name to get ID of an object | ```has_many :locations, id_method_name: :place_ids ```
 object_method_name | Set custom method name to get related objects | ```has_many :locations, object_method_name: :places ```
 record_type | Set custom Object Type for a relationship | ```belongs_to :owner, record_type: :user```