From 7fec4d5771310ca5e288ada6f6467b5219f18c59 Mon Sep 17 00:00:00 2001
From: Jonas Riedel <jonas.riedel@ionos.com>
Date: Wed, 29 May 2024 12:22:52 +0200
Subject: [PATCH] Add codeblock syntax highlighting

---
 docs/custom-image.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/docs/custom-image.md b/docs/custom-image.md
index 6d107712..60229956 100644
--- a/docs/custom-image.md
+++ b/docs/custom-image.md
@@ -25,7 +25,8 @@ Before we can build the image, we have to set the k8s version we want to build t
 If you don't specify the version, the latest version, -2, will be used. If the latest is, e.g., 1.30, then 1.28 will be used.   
 
 For example for k8s version `1.28.3`:
-```
+
+```sh
 export PACKER_FLAGS="--var 'kubernetes_rpm_version=1.28.3' --var 'kubernetes_semver=v1.28.3' --var 'kubernetes_series=v1.28' --var 'kubernetes_deb_version=1.28.3-1.1'"
 ```