Use Git aliases in local contribution guide

doc.zih.tu-dresden.de/docs/contrib/contribute_container.md

@@ -84,7 +84,7 @@ needs to be downloaded, but you have to run it only once in a while.
 Building a container could be done with the following steps:
 
 ```console
-marie@local$ cd hpc-wiki
+marie@local$ cd hpc-compendium
 marie@local$ doc.zih.tu-dresden.de/util/download-newest-mermaid.js.sh
 marie@local$ docker build -t hpc-compendium .
 ```