Fix code example

mnapoli · web-flow · commit 6265e1563cc2 · 2022-02-17T18:52:41.000+01:00
diff --git a/README.md b/README.md
@@ -37,7 +37,7 @@ DeepCopy helps you create deep copies (clones) of your objects. It is designed t
 
 Install with Composer:
 
-```json
+```
 composer require myclabs/deep-copy
 ```
 
