fix grammar

README.md

@@ -2,34 +2,35 @@
     - [DEMO LINK](https://<your_account>.github.io/js_2048_game/)
 2. Follow [this instructions](https://mate-academy.github.io/layout_task-guideline/)
     - There are no tests for this task so use `npm run lint` command instead of `npm test`
+    - TODO(ihor): fix me
 
 ### Task: 2048 game
 
 Hey! Are you ready for a real hard check of your JavaScript skills, ninja?
 If you are still here, let's do it.
 
 In this task, you need to implement the 2048 game like in [this reference](https://play2048.co/)
-Don't play for so long! We need back to work.
+Don't play for too long! We need you to write the code!
 
-Okay, what we have?
-1) HTML and CSS are completely done. So you can use it, or implement your own design if you want.
+Okay, what do we have?
+1) HTML and CSS are already written. You can use it, or implement your own design if you want.
 2) Reference.
 
-That's all.
+That's it!
 
 Okay, okay. Also, we have some rules:
 1) The game field is 4 x 4
-2) Each cell can be empty or contain one of number: 2, 4, 8 ... 2^n
+2) Each cell can be empty or contain one of the numbers: 2, 4, 8 ... 2^n
 3) The player can move cells with keyboard arrows
-4) All the numbers should be moved in the selected direction as much as possible
+4) All the numbers should be moved in the selected direction until all empty cells are filled in
    - 2 equal cells should be merged into a doubled number
    - The merged cell can’t be merged twice during one move
-5) The move is possible if something will be changed after that
+5) The move is possible if at least one cell is changed after the move
 6) After move 2 or 4 appears in a random empty cell. 4 probability is 10%
-7) When 2048 collected should be shown win message.
+7) When 2048 value is displayed in any cell, win message should be shown.
 8) The `game over` message should be shown if there are no more available moves.
-9) Hide start message after begin.
-10) Change the `Start` button to `Restart` after begin.
+9) Hide start message when game starts.
+10) Change the `Start` button to `Restart` after the first move.
 11) Increase score with each move. The score should be increased by the sum of all merged cells.
 
 Hints: