Add DeepWiki badge to README

Added a badge for DeepWiki to the README.

Author: VictorQueiroz

README.md

@@ -1,5 +1,7 @@
 # X's Recommendation Algorithm
 
+[![Ask DeepWiki](https://deepwiki.com/badge.svg)](https://deepwiki.com/twitter/the-algorithm)
+
 X's Recommendation Algorithm is a set of services and jobs that are responsible for serving feeds of posts and other content across all X product surfaces (e.g. For You Timeline, Search, Explore, Notifications). For an introduction to how the algorithm works, please refer to our [engineering blog](https://blog.x.com/engineering/en_us/topics/open-source/2023/twitter-recommendation-algorithm).
 
 ## Architecture