diff --git a/README.md b/README.md
index a78319b..76ba8b2 100644
--- a/README.md
+++ b/README.md
@@ -93,6 +93,7 @@
 - [How Google Search Works](https://newsletter.systemdesign.one/p/search-engine-architecture)
 - [How Giphy Delivers 10 Billion GIFs a Day to 1 Billion Users](https://newsletter.systemdesign.one/p/cdn-explained)
 - [How to Scale an App to 100 Million Users on GCP](https://newsletter.systemdesign.one/p/google-cloud-scalability)
+- [How Google Docs Works](http://newsletter.systemdesign.one/p/how-does-google-docs-work)
 
 #### H companies