Add information about check style automated fixing

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 870ab7f..5520939 100644 (file)
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,4 +1,6 @@
-# Creating pull request
+# Contribution guidelines
+
+## Creating pull request
 1. Open a related issue in the [Issue Tracker](https://github.com/EduardoGR/php-functional/issues)
 2. Fork repository on Web Page
 3. Clone this repository `git clone https://github.com/{your-username}/php-functional`
@@ -7,5 +9,11 @@
 6. Push your changes `git push origin {your-username}-{what-i-am-going-to-develop}`
 7. Create a Pull Request to master on Web Page
 
-# Code style
-php-functional follows the PSR-4 autoloading standard.
+## Code style
+Code style rules are defined and automated via [PHP-CS-Fixer](https://github.com/FriendsOfPHP/PHP-CS-Fixer) 
+to automatically applied them to code base please run:
+```
+composer fix
+```
+
+`php-functional` follows the PSR-4 autoloading standard.
\ No newline at end of file