Fix phpUnit version in readme [ci skip] [skip ci]

Author: ankurk91

README.md

@@ -1,19 +1,19 @@
 # phpUnit Testing, Travis CI and Coveralls
 
-> An example repo to get start with phpUnit 
+> An example repo to get started with phpUnit 
 
 [![Build Status](https://travis-ci.org/ankurk91/phpunit-travis-ci-coveralls-example.svg?branch=master)](https://travis-ci.org/ankurk91/phpunit-travis-ci-coveralls-example)
-[![Coverage Status](https://coveralls.io/repos/github/ankurk91/phpunit-travis-ci-coveralls-example/badge.svg?branch=master)](https://coveralls.io/github/ankurk91/phpunit-travis-ci-coveralls-example?branch=master)
-[![codecov](https://codecov.io/gh/ankurk91/phpunit-travis-ci-coveralls-example/branch/master/graph/badge.svg)](https://codecov.io/gh/ankurk91/phpunit-travis-ci-coveralls-example)
+[![Coveralls](https://coveralls.io/repos/github/ankurk91/phpunit-travis-ci-coveralls-example/badge.svg?branch=master)](https://coveralls.io/github/ankurk91/phpunit-travis-ci-coveralls-example?branch=master)
+[![CodeCov](https://codecov.io/gh/ankurk91/phpunit-travis-ci-coveralls-example/branch/master/graph/badge.svg)](https://codecov.io/gh/ankurk91/phpunit-travis-ci-coveralls-example)
 
 ## Prerequisites
 * php v7.0+, see [requirements](https://phpunit.de/manual/current/en/installation.html#installation.requirements)
-* [phpUnit](https://github.com/sebastianbergmann/phpunit/) v5.6.0
+* [phpUnit](https://github.com/sebastianbergmann/phpunit/) v6.2.0
 * [php-coveralls](https://github.com/satooshi/php-coveralls) v1.0.1
 * php [Xdebug](https://xdebug.org/) extension v2.5.0+
 
 ## Test on localhost
-```
+```sh
 cd path/to/this-project
 composer install
 composer run test