add doc string to get_important_folders

src/mpsd_software_manager/utils/filesystem_utils.py

@@ -137,7 +137,21 @@ def get_important_folders(
     root_dir: Path,
 ):
     """
-    Returns a dictionary of important folders for scripts, as currently envisioned.
+    Returns a dictionary of important folders for scripts.
+
+    Parameters
+    ----------
+    mpsd_release : str
+        The MPSD release version.
+    root_dir : Path
+        The root directory.
+
+    Returns
+    -------
+    dict
+        A dictionary containing the important folders for scripts.
+        currently: release_base_dir, microarch, package_set_dir, spack_dir,
+        lmod_dir, spack_setup_script, logs_dir, repo_path
 
     """
     release_base_dir = root_dir / mpsd_release