Update README.md

dopevog · web-flow · commit c7f06b7c34e2 · 2021-05-24T14:00:42.000+05:30
diff --git a/README.md b/README.md
@@ -16,7 +16,7 @@ cd Vython
 ```
 $ python3 vython.py main.vy
 ```
-* The scripts' file extension must be ```.vy```
+* The scripts' file extension must be ```.vo```
 
 ## Usage
 * Print:
