Added description for the '-reinit' parameter

QuickStart.md

@@ -23,6 +23,7 @@ If you have that, you'll need to do:
 * Start MUnique.OpenMU.Startup
   * If required, it will create the database schemas, the required roles and gives permissions to this roles
   * If you update to a newer state of the master-branch, it could be possible that you have to delete the database again before starting. Currently, we are not providing patches for database updates.
+  * You can reinstall the database by adding a '-reinit' parameter
 
 When the Admin Panel is initialized, go to http://localhost:1234/admin. Then you should see three gameservers,
 the chat server and the connect server. Start the connect server and at least one gameserver.