Fix two typos (#7533)

- Typos identified by CommonTypos internal Google check.

Author: dstrain115

docs/build/classical_control.ipynb

@@ -276,7 +276,7 @@
    "source": [
     "### Sympy Complex Boolean Functions\n",
     "\n",
-    "Cirq supports evaluating complex boolean functions on multiqubit measurement keys throught Sympy's [indexed objects](https://docs.sympy.org/latest/modules/tensor/indexed.html#sympy.tensor.indexed.Indexed.base).\n",
+    "Cirq supports evaluating complex boolean functions on multiqubit measurement keys through Sympy's [indexed objects](https://docs.sympy.org/latest/modules/tensor/indexed.html#sympy.tensor.indexed.Indexed.base).\n",
     "\n",
     "In this example, `X` will be applied to $q_2$ if and only if the result of the two-qubit measurement of $q_0, q_1$ has two different bits. "
    ]

docs/tutorials/google/identifying_hardware_changes.ipynb

@@ -432,7 +432,7 @@
    "source": [
     "The large numbers in yellow show where errors are very high.  For instance, qubits $(8,4)$ and $(9,4)$ have high errors and should be avoided.\n",
     "\n",
-    "It's important to note that, if you have the option to use a _consistently_ high reliablity qubit or qubit pair, instead of one that demonstrates inconsistent performance, you should do so."
+    "It's important to note that, if you have the option to use a _consistently_ high reliability qubit or qubit pair, instead of one that demonstrates inconsistent performance, you should do so."
    ]
   },
   {