🐛 [Bug report]: Memory Game GitHub repo link is broken

**Describe the bug**
A clear and concise description of what the bug is.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to 'this play:  https://www.reactplay.io/plays/memory-game'
2. Click on 'GitHub Source Icon'
It gives 404

**Expected behavior**
I should land to the correct link

Fix: Need to change the play folder name to memory-game to fix it.