Update README.md

Author: danielrouco

README.md

@@ -1,4 +1,5 @@
 # Vocabulary practice
 A web that allows you to practice your vocabulary. You only have to introduce your vocabulary lists and start practicing!
 # Preview
-![Preview](https://github.com/robda20188/vocabulary-practice/assets/98611646/076ca8b2-3450-46ea-8576-9fdd3d07c973)
+![Preview](https://github.com/robda20188/vocabulary-practice/assets/98611646/509b913a-4137-404e-bf7b-5b6294e19a5d)
+![Preview](https://github.com/robda20188/vocabulary-practice/assets/98611646/b8970845-261c-4837-81c1-226d6140a9e6)