diff --git a/Tangled_cables_at_Tokyo_Festival_of_Modular_2013.jpg b/Tangled_cables_at_Tokyo_Festival_of_Modular_2013.jpg
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diff --git a/cover.jpg b/cover.jpg
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diff --git a/test.ipynb b/test.ipynb
deleted file mode 100644
index 6bcc02f..0000000
--- a/test.ipynb
+++ /dev/null
@@ -1,55 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "code",
-   "execution_count": 3,
-   "id": "8d024ff0-1dc3-4a8a-8974-85665c28e0c1",
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Already up to date.\n",
-      "\n"
-     ]
-    }
-   ],
-   "source": [
-    "import os\n",
-    "stream = os.popen('git pull')\n",
-    "output = stream.read()\n",
-    "print(output)"
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": null,
-   "id": "2d5f2527-0865-489b-9ca4-e6a45102211b",
-   "metadata": {},
-   "outputs": [],
-   "source": []
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3 (ipykernel)",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.7.3"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 5
-}