Update README.md

Author: achyutghosh

README.md

@@ -1,3 +1,7 @@
 # Frogger-JavaScript-Game
-Frogger is a javascript game for browser. I use object oriented js to design this game. Assests for this game are downloaded from internet.
+Frogger is a javascript game for browser.
+
+Basic Functionality:
+In this game you have a Player and Enemies (Bugs). The goal of the player is to reach the water, without colliding into any one of the enemies. The player can move left, right, up and down. The enemies move in varying speeds on the paved block portion of the scene. Once a the player collides with an enemy, the game is reset and the player moves back to the start square. Once the player reaches at certain point the game is won.
+
 Here is the link of this game - https://achyutghosh.github.io/Frogger-JavaScript-Game/