Add “How to Play” Instructions Section

[bhumishah2411]

Explain controls and goal of the game to new players.

Acceptance Criteria:

• Small info section or modal
• Explain rules and merging
• Explain controls (arrows/swipe)
• Accessible and readable

[iDarkster]

Hello,do we have to add the How to play section in the readme.md of the project?

[harshit-sharma2005]

HI @bhumishah2411 I would love to contribute for the issue. Please assign it to me.

[palak507]

Hey @bhumishah2411 I would love to contribute to the issue. Please assign it to me