Merge pull request Qiskit/qiskit-tutorials#1106 from ljmf00/patch-1

algorithms: fix typo on grover jupyter notebook

Author: SooluThomas

docs/tutorials/07_grover.ipynb

@@ -53,7 +53,7 @@
     "\n",
     "To run Grover's algorithm with the `Grover` class, firstly, we need to specify an oracle for the circuit of Grover's algorithm. In the following example, we use `QuantumCircuit` as the oracle of Grover's algorithm. However, there are several other class that we can use as the oracle of Grover's algorithm. We talk about them later in this tutorial.\n",
     "\n",
-    "Note that the oracle for `Grover` mush be a _phase-flip_ oracle. That is, it multiplies the amplitudes of the of \"good states\" by a factor of $-1$. We explain later how to convert a _bit-flip_ oracle to a phase-flip oracle. "
+    "Note that the oracle for `Grover` must be a _phase-flip_ oracle. That is, it multiplies the amplitudes of the of \"good states\" by a factor of $-1$. We explain later how to convert a _bit-flip_ oracle to a phase-flip oracle. "
    ]
   },
   {