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

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

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

@@ -1,6 +1,6 @@
 First, install recommended compiler. We recommend to use `gcc/g++ >= 12.3.0` as the default compiler to avoid potential problems. For example, on Ubuntu 22.4, you can run:
 
-```console
+```bash
 sudo apt-get update  -y
 sudo apt-get install -y gcc-12 g++-12 libnuma-dev python3-dev
 sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-12 10 --slave /usr/bin/g++ g++ /usr/bin/g++-12
@@ -8,14 +8,14 @@ sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-12 10 --slave /
 
 Second, clone vLLM project:
 
-```console
+```bash
 git clone https://github.com/vllm-project/vllm.git vllm_source
 cd vllm_source
 ```
 
 Third, install Python packages for vLLM CPU backend building:
 
-```console
+```bash
 pip install --upgrade pip
 pip install "cmake>=3.26.1" wheel packaging ninja "setuptools-scm>=8" numpy
 pip install -v -r requirements/cpu.txt --extra-index-url https://download.pytorch.org/whl/cpu
@@ -23,13 +23,13 @@ pip install -v -r requirements/cpu.txt --extra-index-url https://download.pytorc
 
 Finally, build and install vLLM CPU backend:
 
-```console
+```bash
 VLLM_TARGET_DEVICE=cpu python setup.py install
 ```
 
 If you want to develop vllm, install it in editable mode instead.
 
-```console
+```bash
 VLLM_TARGET_DEVICE=cpu python setup.py develop
 ```