Show version badges

[crazyhitty]

1. For Google play.
2. For master branch.
3. For beta branch.

Use this to create a new badge: http://shields.io/#your-badge

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Example badge code:

[![Goolgle play badge](https://img.shields.io/badge/Google%20play-v0.36-green.svg)](https://play.google.com/store/apps/details?id=com.crazyhitty.chdev.ks.predator)

Example badge preview: