comment added

pull_out/pull_out.ipynb

@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "faced-nowhere",
+   "id": "killing-caribbean",
    "metadata": {},
    "source": [
     "Contents: The lecture introduces the extensions of the analytical model of pull-out based on the assumption of a constant bond-slip law.\n",
@@ -15,10 +15,10 @@
   },
   {
    "cell_type": "markdown",
-   "id": "three-tooth",
+   "id": "relevant-elements",
    "metadata": {},
    "source": [
-    "# 2.2 Classification of pull-out configurations\n",
+    "# 2.2 Classification of pull-out configurations xxx\n",
     "\n",
     "- 2.2.1 [Pull-out configuration explorer](2_2_1_PO_configuration_explorer.ipynb)\n",
     "- 2.2.2 [EXTRA - Pull-out of elastic long fiber from elastic long matrix](2_2_2_PO_ELF_ELM.ipynb)\n",
@@ -29,7 +29,7 @@
   {
    "cell_type": "code",
    "execution_count": null,
-   "id": "therapeutic-webster",
+   "id": "higher-wells",
    "metadata": {},
    "outputs": [],
    "source": []