Update README.md

Author: Geektrovert

README.md

@@ -1,13 +1,13 @@
 # BookMan
 
-[![Maintenance](https://img.shields.io/badge/Maintained%3F-yes-green.svg)](https://GitHub.com/Naereen/StrapDown.js/graphs/commit-activity)
+[![Maintenance](https://img.shields.io/badge/Maintained%3F-yes-green.svg?style=for-the-badge)](https://GitHub.com/Naereen/StrapDown.js/graphs/commit-activity)
 ![GitHub last commit (branch)](https://img.shields.io/github/last-commit/YAS-opensource/BookMan/master.svg?style=for-the-badge)
 [![forthebadge made-with-python](http://ForTheBadge.com/images/badges/made-with-python.svg)](https://www.python.org/)
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/6edc72900d9640d981152ef6756b8296)](https://www.codacy.com/app/namanush.rsr.16/BookMan?utm_source=github.com&utm_medium=referral&utm_content=YAS-opensource/BookMan&utm_campaign=Badge_Grade)
-[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](http://makeapullrequest.com)
+[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=for-the-badge)](http://makeapullrequest.com)
 [![Open Source Love svg3](https://badges.frapsoft.com/os/v3/open-source.svg?v=103)](https://github.com/ellerbrock/open-source-badges/)
 [![ForTheBadge built-with-love](http://ForTheBadge.com/images/badges/built-with-love.svg)](https://GitHub.com/Naereen/)
-[![GPLv3 license](https://img.shields.io/badge/License-GPLv3-blue.svg)](http://perso.crans.org/besson/LICENSE.html)
+[![GPLv3 license](https://img.shields.io/badge/License-GPLv3-blue.svg?style=for-the-badge)](http://perso.crans.org/besson/LICENSE.html)
 
 ---