Replaced hashie_rails by hashie-forbidden_attributes.

Author: dblock

README.md

@@ -274,11 +274,11 @@ Modify `config/routes`:
 mount Twitter::API => '/'
 ```
 
-Additionally, if the version of your Rails is 4.0+ and the application uses the default model layer of ActiveRecord, you will want to use the `hashie_rails` [gem](https://rubygems.org/gems/hashie_rails). This gem disables the security feature of `strong_params` at the model layer, allowing you the use of Grape's own params validation instead.
+Additionally, if the version of your Rails is 4.0+ and the application uses the default model layer of ActiveRecord, you will want to use the `hashie-forbidden_attributes` [gem](https://rubygems.org/gems/hashie-forbidden_attributes). This gem disables the security feature of `strong_params` at the model layer, allowing you the use of Grape's own params validation instead.
 
 ```ruby
 # Gemfile
-gem "hashie_rails"
+gem "hashie-forbidden_attributes"
 ```
 
 See [below](#reloading-api-changes-in-development) for additional code that enables reloading of API changes in development.