diff --git a/README.md b/README.md
index 3ecf540..ba66a5c 100644
--- a/README.md
+++ b/README.md
@@ -41,9 +41,9 @@ The project consists of the following classes and interfaces:
        |      GasCar       |               |    ElectricCar    |
        |      (Class)      |               |      (Class)      |
        +-------------------+               +-------------------+
-         ^               ^                                   ^
+         ^               |                                   |
          | extends       | implements                        | implements
-         |               |                                   |
+         |               ⌄                                   ⌄
 +-------------------+  +-------------------+       +-------------------+
 |     SportsCar     |  |    Refuelable     |       |    Chargeable     |
 |      (Class)      |  |    (Interface)    |       |    (Interface)    |