Update readme

README.md

-My Stack Problems
+## My Stack Problems
 
 > This project forked and has been modified from [A simple grey theme for Jekyll](https://github.com/liamsymonds/simplygrey-jekyll), and the search posts using [Super Search](https://github.com/chinchang/super-search)
 
+### Feature
+
+* Sitemap and XML Feed
+* Paginations in homepage
+* Posts under category
+* Realtime Search Posts _(description)_ under query.
+* Related Posts
+* Highlight pre
+* Next & Previous Post
+* Disqus comment
+
+#### Screenshot
+
 ![Screenshot Post](https://raw.githubusercontent.com/agusmakmun/agusmakmun.github.io/master/img/screenshot-post.png  "Screenshot Post")