diff --git a/docs/n00b-syntaxReference.md b/docs/n00b-syntaxReference.md
index 7edb4c319..2c9ef7207 100644
--- a/docs/n00b-syntaxReference.md
+++ b/docs/n00b-syntaxReference.md
@@ -26,6 +26,18 @@ erDiagram
           PRODUCT ||--o{ ORDER-ITEM : "ordered in"
 ```
 
+```mermaid
+erDiagram
+          CUSTOMER }|..|{ DELIVERY-ADDRESS : has
+          CUSTOMER ||--o{ ORDER : places
+          CUSTOMER ||--o{ INVOICE : "liable for"
+          DELIVERY-ADDRESS ||--o{ ORDER : receives
+          INVOICE ||--|{ ORDER : covers
+          ORDER ||--|{ ORDER-ITEM : includes
+          PRODUCT-CATEGORY ||--|{ PRODUCT : contains
+          PRODUCT ||--o{ ORDER-ITEM : "ordered in"
+```
+
 The [Getting Started](./n00b-gettingStarted.md) section can also provide some practical examples of mermaid syntax.
 
 ## Diagram Breaking