Update QRC Demo MNIST.ipynb

QRC Demo MNIST.ipynb

@@ -1941,9 +1941,9 @@
    "id": "077c476b",
    "metadata": {},
    "source": [
-    "1. How does the QRC perform if we only collect $\\langle Z_i\\rangle $ expectation values and drop $\\langle Z_i Z_j\\rangle $ correlations? Why do you think this happens?\n",
+    "1. How does the QRC perform if we only collect $\\langle Z_i\\rangle $ expectation values and drop $\\langle Z_i Z_j\\rangle $ correlations? Why do you think this happens? How about adding connected $\\langle Z_i Z_j Z_k\\rangle$, where $\\{i, j, k\\}$ are a cluster of sites connected by the nearest neighbor bonds?\n",
     "\n",
-    "Hint: Try to modify the readouts vector to exclude correlations."
+    "Hint: Try to modify the readouts vector to modify correlations calculated."
    ]
   },
   {