Fix according to Danny

doc.zih.tu-dresden.de/docs/software/containers.md

@@ -351,9 +351,12 @@ One common use-case for containers is that you need an operating system with a n
 [glibc](https://www.gnu.org/software/libc/) version than what is available on ZIH systems. E.g., the
 bullx Linux on ZIH systems used to be based on RHEL 6 having a rather dated glibc version 2.12, some
 binary-distributed applications didn't work on that anymore. You can use one of our pre-made CentOS
-7 container images (`/data/horse/singularity/centos7.img`) to circumvent this problem. Example:
+7 container images (`/data/horse/lustre/scratch2/singularity/centos7.img`) to circumvent this
+problem.
 
-```console
-marie@compute$ singularity exec /data/horse/singularity/centos7.img ldd --version
-ldd (GNU libc) 2.17
+!!! example
+
+    ```console
+    marie@compute$ singularity exec /data/horse/lustre/scratch2/singularity/centos7.img ldd --version
+    ldd (GNU libc) 2.17
 ```