Updated README

Author: sea5kg

README.md

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 # wsjcpp-yaml
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+[![Build Status](https://api.travis-ci.com/wsjcpp/wsjcpp-yaml.svg?branch=master)](https://api.travis-ci.com/wsjcpp/wsjcpp-yaml) [![Github Stars](https://img.shields.io/github/stars/wsjcpp/wsjcpp-yaml.svg?label=github%20%E2%98%85)](https://github.com/wsjcpp/wsjcpp-yaml/stargazers) [![Github Stars](https://img.shields.io/github/contributors/wsjcpp/wsjcpp-yaml.svg)](https://github.com/wsjcpp/wsjcpp-yaml/) [![Github Forks](https://img.shields.io/github/forks/wsjcpp/wsjcpp-yaml.svg?label=github%20forks)](https://github.com/wsjcpp/wsjcpp-yaml/network/members)
+
 C++ Write/Reader yaml files