change rocketchat channel name

content/index.md

@@ -23,7 +23,7 @@ For important topics and requests our ticket system is the preferred contact poi
 |               |              | 
 |---------------|--------------|
 |Ticketsystem:  | {{< spamspan 36c3 c3loc.de >}}|
-|Rocket.Chat:   | #c3loc       |
+|Rocket.Chat:   | #logistik    |
 |On-Site Phone: | 0341-39294864|
 |DECT:          | 1010         |