docs: ER diagram (LAN-718)

Author: barredterra

docs/permissions.md

@@ -23,11 +23,13 @@ If a member/user is allowed access to lower level organizations, the default **U
 
 ```mermaid
 erDiagram
-    USER ||--o{ USER-PERMISSION : restricted-by
+    USER ||--|{ USER-PERMISSION : restricted-by
+    ANY-DOCTYPE ||--|| ORGANIZATION : linked-to
     USER ||--o{ ROLE : has
-    USER-PERMISSION |o--o{ ORGANIZATION : restricts-to
+    USER-PERMISSION ||--|{ ORGANIZATION : restricts-to
     USER-PERMISSION |o--o| LANDA-MEMBER : restricts-to
     USER ||--|| LANDA-MEMBER : belongs-to
+    LANDA-MEMBER ||--|| ORGANIZATION : belongs-to
     LANDA-MEMBER ||--o{ MEMBER-FUNCTION : has
     MEMBER-FUNCTION ||--|| MEMBER-FUNCTION-CATEGORY : has-type
     MEMBER-FUNCTION-CATEGORY ||--o{ ROLE : grants