Improve README and add chinese version

[FireCubeStudios]

Hi! Thanks for the contribution. Just some (minor) suggestions:

• The store badge is very big. It should be more button sized.
• The "asset" folder should be named "Assets"

[kurisucat]

Hi! Thanks for the contribution. Just some (minor) suggestions:

* The store badge is very big. It should be more button sized.

* The "asset" folder should be named "Assets"

edited

[FireCubeStudios]

Merging ✔️