diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -26,6 +26,10 @@ yarn migrate
 yarn start
 ```
 
+## Database Scheme
+The database scheme used here is as follows
+<img src="./doc/scheme.jpg">
+
 ## API Documentation
 Using Swagger, on /api/docs, we give the documentation here.
 
diff --git a/doc/scheme.jpg b/doc/scheme.jpg
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