Update logo url

Author: StefanGreve

readme.md

@@ -1,6 +1,6 @@
 <p align="center">
   <a title="Project Logo">
-    <img height="150" style="margin-top:15px" src="https://raw.githubusercontent.com/Advanced-Systems/vector-assets/master/advanced-systems-logo-annotated.svg">
+    <img height="150" style="margin-top:15px" src="https://raw.githubusercontent.com/Advanced-Systems/assets/master/logos/svg/min/adv-logo.svg">
   </a>
 </p>