diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -135,3 +135,7 @@ tests/unit/test_settings.py        6      0   100%
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 TOTAL                            540      0   100%
 ```
+
+## ERD
+
+![ERD](./images/erd.png)
diff --git a/images/erd.png b/images/erd.png
new file mode 100644
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Binary files /dev/null and b/images/erd.png differ