Add information about images

Author: SciLor

README.md

@@ -1,2 +1,5 @@
 # Toniebox Reverse Engineering Website
 This repository contains the [Toniebox Reverse Engineering Website](https://tonies-wiki.revvox.de) generated with [hugo](https://gohugo.io/installation/).  
+
+## Pull Requests
+Please be sure you put the images into the static/img dir with a nice name. The embedded images should also get a nice alt-attribute and a relative link to `/img/<your-img-name.ext>`