adding an exercise

content/verify_installation.rst

@@ -19,6 +19,7 @@ This demo will not only verify the presence of Apptainer on your system but will
 
 
 .. codeblock:: bash
+
    # Check if Apptainer is installed and determine its version
    apptainer --version
 
@@ -30,15 +31,18 @@ Summary
 In this lesson, you learned how to verify the installation of Apptainer on your HPC cluster and how to check its version. This is a foundational skill that ensures you can proceed with confidence in using Apptainer for more advanced tasks in container management.
 
 .. exercise:: Configure Apptainer
+
    Explore the online Apptainer documentation and search for the bash environment variables that apptainer uses.
    1. Do you have any apptainer variables set in your shell environment?
    2. How do you set the variables for the CACHEDIR and TMPDIR so that they are pointing to a disk where you have enough free space? (e.g. your work folder)
 
    .. solution:: Solution
+
       1. Apptainer uses the following environemnt variables:
       2. The following code creates subfolders in your work directory and makes sure that apptainer will use those folders to store temporary files
 
       .. codeblock:: bash
+
          mkdir $WRKDIR/apptainercache/
          mkdir $WRKDIR/apptainertemp/
          export APPTAINER_CACHEDIR="$WRKDIR/apptainercache/"