Update known-issue.md

Author: gwangmu

docs/software/container-engine/known-issue.md

@@ -2,7 +2,7 @@
 
 Alpine Linux is incompatible with some hooks, causing errors when used with Slurm. For example,
 
-```bash
+```console
 $ cat alpine.toml
 image = "alpine:3.19"
 
@@ -18,7 +18,7 @@ $ srun -lN1 --environment=alpine.toml echo "abc"
 
 This is because some hooks (e.g., Slurm and CXI hooks) leverage `ldconfig` (from Glibc) when they bind-mount host libraries inside containers; since Alpine Linux provides an alternative `ldconfig` (from Musl Libc), it does not work as intended by hooks. As a workaround, users may disable problematic hooks. For example,
 
-```bash
+```console
 $ cat alpine_workaround.toml
 image = "alpine:3.19"