How to use phpcbf

Co-Authored-By: Lena Orobei <oorobei@magento.com>

Author: lfluvisotto

README.md

@@ -43,6 +43,7 @@ Once installed, you can run `phpcs` from the command-line to analyse your code `
 $ vendor/bin/phpcs --standard=Magento2 app/code/MyAwesomeExtension
 ```
 
+### Fixing issues automatically
 Also you can run `phpcbf` from the command-line to fix your code `MyAwesomeExtension` for warnings like
  "PHPCBF CAN FIX THE [0-9]+ MARKED SNIFF VIOLATIONS AUTOMATICALLY"
 ```