[added] links to README badges

Author: appsforartists

README.md

@@ -1,10 +1,10 @@
-# Indefinite Observable ##
+# Indefinite Observable #
 
 <!-- TODO: update version number before releasing, here and in the script tag -->
-![Current version:](https://img.shields.io/badge/v1.0.2:-222222.svg?logo=npm)
+[![Current version:](https://img.shields.io/badge/v1.0.2:-222222.svg?logo=npm)](https://www.npmjs.com/package/indefinite-observable/v/1.0.2)
 [![Test status](https://img.shields.io/circleci/project/github/material-motion/indefinite-observable-js/stable.svg?logo=circleci&label=Tests)](https://circleci.com/gh/material-motion/indefinite-observable-js/tree/stable)
 [![Code coverage](https://img.shields.io/codecov/c/github/material-motion/indefinite-observable-js/stable.svg?logo=codecov&logoColor=white&label=Coverage)](https://codecov.io/gh/material-motion/indefinite-observable-js/branch/stable)<br />
-![HEAD:](https://img.shields.io/badge/HEAD:-222222.svg?logo=github&logoColor=white)
+[![HEAD:](https://img.shields.io/badge/HEAD:-222222.svg?logo=github&logoColor=white)](https://github.com/material-motion/indefinite-observable-js)
 [![Test status](https://img.shields.io/circleci/project/github/material-motion/indefinite-observable-js/develop.svg?logo=circleci&label=Tests)](https://circleci.com/gh/material-motion/indefinite-observable-js/tree/develop)
 [![Code coverage](https://img.shields.io/codecov/c/github/material-motion/indefinite-observable-js/develop.svg?logo=codecov&logoColor=white&label=Coverage)](https://codecov.io/gh/material-motion/indefinite-observable-js/branch/develop)