Fix API blueprint documentation.

- Headers and Body sections were indented with 8 spaces instead of 12 (https://github.com/apiaryio/api-blueprint/blob/format-1A/API%20Blueprint%20Specification.md#ActionResponseSection)
- The API name was not present (https://github.com/apiaryio/api-blueprint/blob/format-1A/API%20Blueprint%20Specification.md#42-api-name--overview-section)

Author: FabienChaynes

lib/rspec_api_documentation/views/api_blueprint_example.rb

@@ -1,7 +1,7 @@
 module RspecApiDocumentation
   module Views
     class ApiBlueprintExample < MarkupExample
-      TOTAL_SPACES_INDENTATION = 8.freeze
+      TOTAL_SPACES_INDENTATION = 12.freeze
 
       def initialize(example, configuration)
         super

spec/views/api_blueprint_example_spec.rb

@@ -59,15 +59,15 @@
 
       context 'when charset=utf-8 is present' do
         it "just strips that because it's the default for json" do
-          expect(subject).to eq "Content-Type: application/json\n        Another: header; charset=utf-8"
+          expect(subject).to eq "Content-Type: application/json\n            Another: header; charset=utf-8"
         end
       end
 
       context 'when charset=utf-16 is present' do
         let(:content_type) { "application/json; charset=utf-16" }
 
         it "keeps that because it's NOT the default for json" do
-          expect(subject).to eq "Content-Type: application/json; charset=utf-16\n        Another: header; charset=utf-8"
+          expect(subject).to eq "Content-Type: application/json; charset=utf-16\n            Another: header; charset=utf-8"
         end
       end
     end
@@ -95,15 +95,15 @@
 
       context 'when charset=utf-8 is present' do
         it "just strips that because it's the default for json" do
-          expect(subject).to eq "Content-Type: application/json\n        Another: header; charset=utf-8"
+          expect(subject).to eq "Content-Type: application/json\n            Another: header; charset=utf-8"
         end
       end
 
       context 'when charset=utf-16 is present' do
         let(:content_type) { "application/json; charset=utf-16" }
 
         it "keeps that because it's NOT the default for json" do
-          expect(subject).to eq "Content-Type: application/json; charset=utf-16\n        Another: header; charset=utf-8"
+          expect(subject).to eq "Content-Type: application/json; charset=utf-16\n            Another: header; charset=utf-8"
         end
       end
     end

templates/rspec_api_documentation/api_blueprint_index.mustache

@@ -1,4 +1,5 @@
 FORMAT: 1A
+# {{ api_name }}
 {{# sections }}
 
 # Group {{ resource_name }}
@@ -48,13 +49,13 @@ explanation: {{ explanation }}
 
     + Headers
 
-        {{{ request_headers_text }}}
+            {{{ request_headers_text }}}
 {{/ request_headers_text }}
 {{# request_body }}
 
     + Body
 
-        {{{ request_body }}}
+            {{{ request_body }}}
 {{/ request_body }}
 {{# has_response? }}
 
@@ -64,13 +65,13 @@ explanation: {{ explanation }}
 
     + Headers
 
-        {{{ response_headers_text }}}
+            {{{ response_headers_text }}}
 {{/ response_headers_text }}
 {{# response_body }}
 
     + Body
 
-        {{{ response_body }}}
+            {{{ response_body }}}
 {{/ response_body }}
 {{/ requests }}
 {{/ examples }}