diff --git a/README.md b/README.md
index 32b87fd3..23f34111 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ Develop:
 
 PhpSpreadsheet is a library written in pure PHP and providing a set of classes that allow you to read from and to write to different spreadsheet file formats, like Excel and LibreOffice Calc.
 
-## File Formats supported
+## File formats supported
 
 |Format                                      |Reading|Writing|
 |--------------------------------------------|:-----:|:-----:|
@@ -38,7 +38,7 @@ PhpSpreadsheet is a library written in pure PHP and providing a set of classes t
  * PHP extension php_xml enabled
  * PHP extension php_gd2 enabled (optional, but required for exact column width autocalculation)
 
-## PHP Version Support
+## PHP version support
 
  * Support for PHP versions will only be maintained for a period of six months beyond the end-of-life of that PHP version
 
@@ -48,10 +48,15 @@ If you would like to contribute, here are some notes and guidelines:
  - All new development happens on feature/fix branches referenced with the GitHub issue number, and are then merged to the develop branch; so the develop branch is always the most up-to-date, working code
  - The master branch only contains tagged releases
  - If you are going to be submitting a pull request, please fork from develop, and submit your pull request back as a fix/feature branch referencing the GitHub issue number
- - Wherever possible, code changes should conform to PSR-2 standards
+ - Code changes must be validated by PHP-CS-Fixer and PHP_CodeSniffer (via `./vendor/bin/php-cs-fixer fix --verbose && ./vendor/bin/phpcs samples/ src/ tests/ --standard=PSR2 -n`)
  - [Helpful article about forking](https://help.github.com/articles/fork-a-repo/ "Forking a GitHub repository")
  - [Helpful article about pull requests](https://help.github.com/articles/using-pull-requests/ "Pull Requests")
 
+## PHPExcel vs PhpSpreadsheet ?
+
+PhpSpreadsheet is the next version of PHPExcel. It breaks compatibility to dramatically improve the code base quality (namespaces, PSR compliance, use of latest PHP language features, etc.).
+
+Because all efforts have shifted to PhpSpreadsheet, PHPExcel will no longer be maintained. All contributions for PHPExcel, patches and new features, should target PhpSpreadsheet develop branch.
 
 ## License