diff --git a/docs/PyHEP_2021_workshop_presentation/demo.ipynb b/docs/PyHEP_2021_workshop_presentation/demo.ipynb
index d0eb7a2..0f4e960 100644
--- a/docs/PyHEP_2021_workshop_presentation/demo.ipynb
+++ b/docs/PyHEP_2021_workshop_presentation/demo.ipynb
@@ -1,5 +1,27 @@
 {
  "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "eb25332d",
+   "metadata": {},
+   "source": [
+    "# Before you start\n",
+    "\n",
+    "To run this notebook you first have to:\n",
+    "1. Install the `progressreporting` package following the instructions [here](https://github.com/SengerM/progressreporting).\n",
+    "2. [Create a Telegram bot](https://core.telegram.org/bots#3-how-do-i-create-a-bot) and have in hand its token and also the ID of the chat to which you want to send the messages (basic tutorial [here](https://github.com/SengerM/progressreporting#creating-a-bot), otherwise just google it)."
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "eef4b1d4",
+   "metadata": {},
+   "source": [
+    "# Normal execution with no errors\n",
+    "\n",
+    "Import everything:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -11,19 +33,17 @@
     "from data_processing_bureaucrat.Bureaucrat import TelegramReportingInformation # Here I store the token of the bot, NEVER make it public!\n",
     "import time\n",
     "\n",
-    "MAX_K = 99999\n",
-    "SLEEP_PER_LOOP = 3e-4 # Seconds.\n",
+    "MAX_K = 999\n",
+    "SLEEP_PER_LOOP = 3e-2 # Seconds.\n",
     "REPORTING_TIME = 5 # Seconds."
    ]
   },
   {
    "cell_type": "markdown",
-   "id": "eef4b1d4",
+   "id": "be7cec99",
    "metadata": {},
    "source": [
-    "# Normal execution with no errors\n",
-    "\n",
-    "Let's see how it works when there are no errors."
+    "You will not need the `TelegramReportingInformation`, this is just a private repo I have to store both the token and the chat ID of my bot. **Never make the token public to the world!** If you make it public, it will not be long until the world stoles your bot (already happened to me)."
    ]
   },
   {
@@ -43,7 +63,7 @@
     "    for k in range(MAX_K):\n",
     "        # Do some stuff...\n",
     "        time.sleep(SLEEP_PER_LOOP)\n",
-    "        reporter.update(1) # 1 means 1/MAX_K completed."
+    "        reporter.update(1) # 1 means 1/MAX_K completed. After REPORTING_TIME it will send a message."
    ]
   },
   {
@@ -69,9 +89,9 @@
     "    for k in range(MAX_K):\n",
     "        # Do some stuff...\n",
     "        time.sleep(SLEEP_PER_LOOP)\n",
-    "        if k > 22222:\n",
+    "        if k > 333:\n",
     "            raise RuntimeError('Unexpected things can happen!')\n",
-    "        reporter.update(1) # 1 means 1/MAX_K completed."
+    "        reporter.update(1)"
    ]
   },
   {
@@ -114,7 +134,17 @@
     "        for k in range(MAX_K):\n",
     "            # Do some stuff...\n",
     "            time.sleep(SLEEP_PER_LOOP)\n",
-    "            reporter.update(1) # 1 means 1/MAX_K completed."
+    "            reporter.update(1)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "id": "6955d1e7",
+   "metadata": {},
+   "source": [
+    "The function `function_with_reporting_loop` is just needed for the `multiprocessing` package. Usually each instance of `TelegramProgressReporter` is runing in different scripts/different computers.\n",
+    "\n",
+    "Now we just run 3 instances simultaneously:"
    ]
   },
   {