Specifying code example as Ruby.

README.md

@@ -1,4 +1,3 @@
-
              __  __                     ______
             / / / /_  _________________/ ____/________________
            / /_/ / / / / __ \  _ \_ __/____ \/ __ \  _ \  ___/
@@ -13,42 +12,44 @@ HTTP APIs from the outside.
 
 ## Example
 
-    service "http://localhost:4567" do
-      def response_json
-        JSON.parse(response.body)
-      end
-
-      resource "/lolz" do
-        get do
-          it { responds_with.status :ok }
-          it { response_json['lolz'].must_be_instance_of Array }
-
-          with_query("q=monorail") do
-            it "only lists lolz that match the query" do
-              response_json['lolz'].wont_be_empty
-              response_json['lolz'].each do |lol|
-                lol['title'].must_match /monorail/
-              end
-            end
+```ruby
+service "http://localhost:4567" do
+  def response_json
+    JSON.parse(response.body)
+  end
+
+  resource "/lolz" do
+    get do
+      it { responds_with.status :ok }
+      it { response_json['lolz'].must_be_instance_of Array }
+
+      with_query("q=monorail") do
+        it "only lists lolz that match the query" do
+          response_json['lolz'].wont_be_empty
+          response_json['lolz'].each do |lol|
+            lol['title'].must_match /monorail/
           end
         end
+      end
+    end
 
-        post do
-          describe "without request body" do
-            it { responds_with.status :unprocessable_entity }
-          end
+    post do
+      describe "without request body" do
+        it { responds_with.status :unprocessable_entity }
+      end
 
-          describe "with request body" do
-            with_headers({ 'Content-Type' => 'application/json' }) do
-              with_request_body({ "title" => "Roflcopter!" }.to_json) do
-                it { responds_with.status :created }
-                it { response_json['lol']['title'].must_equal 'Roflcopter!' }
-              end
-            end
+      describe "with request body" do
+        with_headers({ 'Content-Type' => 'application/json' }) do
+          with_request_body({ "title" => "Roflcopter!" }.to_json) do
+            it { responds_with.status :created }
+            it { response_json['lol']['title'].must_equal 'Roflcopter!' }
           end
         end
       end
     end
+  end
+end
+```
 
 ## Concepts