corrected challenge description

ai/Megatron/English/Python/jupyter_notebook/Day3-5_run_Megatron_with_varying_config.ipynb

@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "markdown",
-   "id": "isolated-conversion",
+   "id": "external-dating",
    "metadata": {},
    "source": [
     "# \n",
@@ -13,7 +13,7 @@
     "## **Challenge ** - Go big or go home !\n",
     "- prerequisites : \n",
     "    - use your current given # of gpus \n",
-    "    - do NOT changing the following parameters **--train-samples 8000 **\n",
+    "    - do NOT changing the following parameters **--train-samples 100 **\n",
     "    - you cannot go OOM \n",
     "    - you must sustain >60% GPUs utilization in the **training** phase \n",
     "    - training run must be finished and checkpoint must be saved successfully\n",
@@ -50,7 +50,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "affecting-performance",
+   "id": "signal-skiing",
    "metadata": {},
    "source": [
     "<a id=\"Rerun_Cell\"></a>"
@@ -59,7 +59,7 @@
   {
    "cell_type": "code",
    "execution_count": 3,
-   "id": "finished-outside",
+   "id": "durable-closing",
    "metadata": {},
    "outputs": [],
    "source": [
@@ -69,7 +69,7 @@
   {
    "cell_type": "code",
    "execution_count": 34,
-   "id": "excess-irrigation",
+   "id": "formal-steam",
    "metadata": {},
    "outputs": [
     {
@@ -151,7 +151,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "static-machine",
+   "id": "facial-teacher",
    "metadata": {},
    "source": [
     "---\n",
@@ -162,7 +162,7 @@
   {
    "cell_type": "code",
    "execution_count": 39,
-   "id": "terminal-wings",
+   "id": "eastern-prairie",
    "metadata": {},
    "outputs": [
     {
@@ -180,7 +180,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "global-maximum",
+   "id": "three-remainder",
    "metadata": {},
    "source": [
     "---\n",
@@ -205,7 +205,7 @@
   {
    "cell_type": "code",
    "execution_count": 35,
-   "id": "desirable-understanding",
+   "id": "weekly-number",
    "metadata": {},
    "outputs": [
     {
@@ -496,7 +496,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "attached-pride",
+   "id": "parallel-language",
    "metadata": {},
    "source": [
     "## Remember to copy and paste your output on Slack or Zoom\n",
@@ -505,7 +505,7 @@
   },
   {
    "cell_type": "markdown",
-   "id": "mental-transportation",
+   "id": "german-aberdeen",
    "metadata": {},
    "source": [
     "-----\n",