Update CONTRIBUTING.md

Author: shalvah

CONTRIBUTING.md

@@ -2,8 +2,6 @@
 
 Contributions are welcome.
 
-NOTE: if your contribution changes the look of the generated documentation in some way, please include "before" and "after" screenshots in your pull request. 
-
 ## Etiquette
 
 This project is open source, and as such, the maintainers give their free time to build and maintain the source code
@@ -38,16 +36,14 @@ Before submitting a pull request:
 
 ## Requirements
 
-If the project maintainer has any additional requirements, you will find them listed here.
+- If your contribution changes the look of the generated documentation in some way, please include "before" and "after" screenshots in your pull request. 
 
-- **[PSR-2 Coding Standard](https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-2-coding-style-guide.md)** - The easiest way to apply the conventions is to install [PHP Code Sniffer](http://pear.php.net/package/PHP_CodeSniffer).
+- Add a description to your pull request so the reviewer knows what to look out for before looking through your changes
 
 - **Add tests!** - Your patch won't be accepted if it doesn't have tests.
 
 - **Document any change in behaviour** - Make sure the `README.md` and any other relevant documentation are kept up-to-date.
 
-- **Consider our release cycle** - We try to follow [SemVer v2.0.0](http://semver.org/). Randomly breaking public APIs is not an option.
-
 - **One pull request per feature** - If you want to do more than one thing, send multiple pull requests.
 
 **Happy coding**!