[Docs] Fix syntax highlighting of shell commands (#19870)

Signed-off-by: Lukas Geiger <lukas.geiger94@gmail.com>

docs/getting_started/installation/cpu/s390x.inc.md

@@ -26,7 +26,7 @@ Currently the CPU implementation for s390x architecture supports FP32 datatype o
 
 Install the following packages from the package manager before building the vLLM. For example on RHEL 9.4:
 
-```console
+```bash
 dnf install -y \
     which procps findutils tar vim git gcc g++ make patch make cython zlib-devel \
     libjpeg-turbo-devel libtiff-devel libpng-devel libwebp-devel freetype-devel harfbuzz-devel \
@@ -35,7 +35,7 @@ dnf install -y \
 
 Install rust>=1.80 which is needed for `outlines-core` and `uvloop` python packages installation.
 
-```console
+```bash
 curl https://sh.rustup.rs -sSf | sh -s -- -y && \
     . "$HOME/.cargo/env"
 ```
@@ -45,7 +45,7 @@ Execute the following commands to build and install vLLM from the source.
 !!! tip
     Please build the following dependencies, `torchvision`, `pyarrow` from the source before building vLLM.
 
-```console
+```bash
     sed -i '/^torch/d' requirements-build.txt    # remove torch from requirements-build.txt since we use nightly builds
     pip install -v \
         --extra-index-url https://download.pytorch.org/whl/nightly/cpu \