diff --git a/2021/psmportal/src/services/repository/readme.md b/2021/psmportal/src/services/repository/readme.md
index c8187e7..9a097cd 100644
--- a/2021/psmportal/src/services/repository/readme.md
+++ b/2021/psmportal/src/services/repository/readme.md
@@ -1,4 +1,6 @@
 # Repository Pattern 
 
 The class diagram below illustrates the repository pattern.
+![image](https://user-images.githubusercontent.com/6658018/130731424-4fa09626-301b-4f57-89c7-6952e6ac9fec.png)
+![image](https://user-images.githubusercontent.com/6658018/130731499-13c588bc-d07b-4842-8f4f-e1922063fca2.png)