fix storage setup

StableDiffusionUI_Voldemort_paperspace.ipynb

@@ -39,11 +39,11 @@
    "source": [
     "**Where to store the models**\n",
     "\n",
-    "`/storage/models/` is for the free tier.\n",
+    "`/storage/` is persistent storage shared across all machines on your account.\n",
     "\n",
-    "`/notebooks/models/` is for the pro tier.\n",
+    "`/notebooks/` is storage for this notebook only.\n",
     "\n",
-    "_You must run the block below or else the variable won't be accessable in the notebook._"
+    "We're going to store models in `/storage/models`."
    ]
   },
   {
@@ -57,7 +57,8 @@
     "# ===============================================================\n",
     "# Save the variable to Jupiter's temp storage to access it when the kernel restarts.\n",
     "# To reset your storage directory, rerun this cell.\n",
-    "%store model_storage_dir"
+    "%store model_storage_dir\n",
+    "!mkdir -p $model_storage_dir"
    ]
   },
   {