Merge pull request #140 from Sheikh-Muhammad-Mujtaba/master

Fix button type attribute in main menu for consistency and audio mute functionality

Merge pull request #135 from tharinduj31/dev-branch

Updated contribution.md

Update CONTRIBUTING.md

Update contributing.md

Add select player function

Remove random select function and update reset board function

Create CONTRIBUTING.md

Change button names

Add randomizeStart1 function

Add new reset1 function

Add two buttons to index.html

Merge pull request #120 from RM1805/master

Added the Undo Move Button