Edit readme

Author: Martan03

README.md

@@ -1,22 +1,35 @@
 # TicTacToe
 
+Console TicTacToe game implemented with C++.
+
 Preview:
 ![Screenshot from 2022-10-20 12-27-06](https://user-images.githubusercontent.com/46300167/196924760-6e5c174e-adf0-4cde-8aae-5a7d5a8f39c9.png)
 
 ## Usage:
-
-Starts the game
 ```
-tictactoe
+tictactoe [flags]
 ```
 
-Starts the game and sets width to height to given size
+## Flags
+Displays help:
+```
+-h
+```
+Sets size of playing board:
 ```
-tictactoe <width> <height>
+-s [width] [height]
 ```
+Sets win length:
+```
+-w [win length]
+```
+
+Default board size is 3x3, win length is 3.
+
+When you start the game, you can type 'quit' to exit the game.
 
-Type 'quit' to exit the game
+## Links
 
-Links:  
-[Author GitHub](https://github.com/Martan03)  
-[Author website](https://martan03.github.io/Portfolio/)
+- **Author:** [Martan03](https://github.com/Martan03)
+- **GitHub repository:** [TicTacToe](https://github.com/Martan03/TicTacToe)
+- **Author website:** [martan03.github.io](https://martan03.github.io)