Typo in documentation

xavierlacot · xavierlacot · commit eb05179a144e · 2018-10-31T19:36:29.000+01:00
diff --git a/README.md b/README.md
@@ -13,7 +13,7 @@ Simply run the following command:
 ansible-galaxy install redirectionio.nginx_module
 ```
 
-## Role vars
+## Role variables
 
 This role does not provide variables.
 
