README.md in rspec-rails-api-0.7.0 vs README.md in rspec-rails-api-0.8.0

@@ -4,11 +4,13 @@
 > documentation
 
 **This is a work in progress** but you're welcome to help, test, submit
 issues, ...
 
-**Note** For Rails 5, use version 0.2.3
+**Note**
+- For Rails 5, use version 0.2.3
+- For Rails 6/ruby 2.7, use version 0.7
 
 ## Installation
 
 Add this line to your application's Gemfile:
 
@@ -77,10 +79,14 @@
 
 ```rb
 # Server URL for quick reference
 server_url = 'https://example.com'
 
+# Optional custom expected content type; default is "application/json; charset=utf-8". 
+# Note that rails adds the charset in the header.
+# RSpec::Rails::Api::Metadata.default_expected_content_type = "application/json+custom; charset=utf-8"
+
 # Options here should be present for a valid OpenAPI file
 renderer.api_title = 'MyProject API'
 renderer.api_version = '1'
 
 # Options below are optional
@@ -544,10 +550,10 @@
 
   #...
 end
 ```
 
-##### `for_code(http_status, description = nil, test_only: false &block)`
+##### `for_code(http_status, description = nil, test_only: false, with_content_type: nil &block)`
 
 Describes the desired output for a precedently defined URL.
 
 Block takes one required argument, that should be passed to `test_response_of`.
 This argument will contain the block context and allow `test_response_of` to access