add more section to readme and version badge

README.md

@@ -1,5 +1,7 @@
 # moyasar-php
 
+[![PHP version](https://badge.fury.io/ph/moyasar%2Fmoyasar-php.svg)](https://badge.fury.io/ph/moyasar%2Fmoyasar-php)
+
 Moyasar PHP wrapper library
 
 ## Documentation
@@ -11,13 +13,22 @@ See the [PHP API docs](https://moyasar.com/docs/api/?php)
 - PHP 5.5.0
 - guzzlehttp/guzzle: ^6.2
 
-### Notes
+#### Notes
 
 - To use the PHP stream handler, allow_url_fopen must be enabled in your system's php.ini.
 - To use the cURL handler, you must have a recent version of cURL >= 7.19.4 compiled with OpenSSL and zlib.
 
+
 ## Installation
 
 You can install it via [composer](https://getcomposer.org/)
 
     $ composer require moyasar/moyasar-php
+
+## Contributing
+
+Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/moyasar-node. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](contributor-covenant.org) code of conduct.
+
+## License
+
+The package is available as open source under the terms of the [MIT License](http://opensource.org/licenses/MIT).