Update README.md

Author: szymmirr

README.md

@@ -6,4 +6,4 @@ Frogger game clone made in Unity 2019.4.5f1 (C#).
 * Scoring and timing system
 * Drowning water platforms
 
-![ezgif-1-1b1d2b1b3a08](https://user-images.githubusercontent.com/12998256/100957868-9085a980-351b-11eb-88cc-e28208d80f41.gif)
+![Gameplay](https://user-images.githubusercontent.com/12998256/100957868-9085a980-351b-11eb-88cc-e28208d80f41.gif)