fixed backtick issues

source/guides/azure/infiniband.md

@@ -248,10 +248,11 @@ bash Mambaforge-Linux-x86_64.sh
 ```
 
 Accept the default and allow conda init to run.
-``shell
+
+```shell
 ~/mambaforge/bin/conda init
 
-````
+```
 
 Then start a new shell.
 
@@ -260,7 +261,7 @@ Create a conda environment (see [UCX-Py](https://ucx-py.readthedocs.io/en/latest
 ```shell
 mamba create -n ucxpy {{ rapids_conda_channels }} {{ rapids_conda_packages }} ipython ucx-proc=*=gpu ucx ucx-py dask distributed numpy cupy pytest pynvml -y
 mamba activate ucxpy
-````
+```
 
 Clone UCX-Py repo locally