diff --git a/README.md b/README.md
new file mode 100644
index 0000000..abee94e
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# PHP-CS-Fixer/phpunit-constraint-isidenticalstring
+
+This constraint is for [PHP CS Fixer](https://github.com/FriendsOfPHP/PHP-CS-Fixer) usage only.
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index dfafa0c..9abf028 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -26,5 +26,4 @@
             <directory>./src</directory>
         </include>
     </coverage>
-
 </phpunit>