#354 Add maven model for feature toggle design pattern

intercepting-filter/index.md

@@ -9,22 +9,24 @@ tags:
  - Difficulty-Intermediate
 ---
 
-**Intent:** Provide pluggable filters to conduct necessary pre-processing and
+## Intent
+Provide pluggable filters to conduct necessary pre-processing and
 post-processing to requests from a client to a target
  
 ![alt text](./etc/intercepting-filter.png "Intercepting Filter")
  
-**Applicability:** Use the Intercepting Filter pattern when
+## Applicability
+Use the Intercepting Filter pattern when
 
 * a system uses pre-processing or post-processing requests
 * a system should do the authentication/ authorization/ logging or tracking of request and then pass the requests to corresponding handlers 
 * you want a modular approach to configuring pre-processing and post-processing schemes
 
-**Real world examples:**
+## Real world examples
 
 * [Struts 2 - Interceptors](https://struts.apache.org/docs/interceptors.html)
 
-**Credits:**
+## Credits
 
 * [TutorialsPoint - Intercepting Filter](http://www.tutorialspoint.com/design_pattern/intercepting_filter_pattern.htm)
 * [Presentation Tier Patterns](http://www.javagyan.com/tutorials/corej2eepatterns/presentation-tier-patterns)