link to cch directions sketch

content/congress_hamburg.md

@@ -46,7 +46,10 @@ Note that mail handling is provided on a best-effort basis. Giving us a head-up
 ## Deliveries
 Delivery hours: 08-20
 
+[Directions sketch](https://www.cch.de/fileadmin/cch/pdf/cch_anlieferung_delivery_de_en.pdf)
+<!--
 ![Anfahrt Halle H](congress_anfahrt_halle_h.png)
+-->
 
 ## Guidance for Assemblies
 Please inform us by mail if you: