#354 Add maven model for feature toggle design pattern

producer-consumer/index.md

@@ -10,13 +10,15 @@ tags:
  - I/O
 ---
 
-**Intent:** Producer Consumer Design pattern is a classic concurrency pattern which reduces
+## Intent
+Producer Consumer Design pattern is a classic concurrency pattern which reduces
  coupling between Producer and Consumer by separating Identification of work with Execution of
  Work.
 
 ![alt text](./etc/producer-consumer.png "Producer Consumer")
 
-**Applicability:** Use the Producer Consumer idiom when
+## Applicability
+Use the Producer Consumer idiom when
 
 * decouple system by separate work in two process produce and consume.
 * addresses the issue of different timing require to produce work or consuming work