Add sentence to lr scheduler notebook (#1099)

Author: ParagEkbote

notebooks/Learning_Rate_Scheduler.ipynb

@@ -138,7 +138,9 @@
     "- Reduces the learning rate in a cosine curve over 10 epochs (T_max=10).\n",
     "- Periodically resets the learning rate, promoting exploration of the loss landscape.\n",
     "\n",
-    "We will now train the neural network with different LR Schedulers."
+    "We will now train the neural network with different LR Schedulers.\n",
+    "\n",
+    "Note: We are training with synthetic data. The breast cancer dataset can also be used."
    ]
   },
   {