adjusted styling

README.md

@@ -11,7 +11,7 @@ Variables
 
 development note: Define these variables in the defaults/main.yml or vars/main.yml file of your sub-role.
 
-packaging_repositories:
+* packaging_repositories
   * description:
     * This is a list of dictionaries for the reporsitories of a package management and contains some information about them.
     * Every list entry has following keys by default: