Updating the IonQ examples (#465) (#466)

Author: bettinaheim

docs/sphinx/examples/cpp/providers/ionq.cpp

@@ -16,7 +16,9 @@ struct ghz {
     for (int i = 0; i < 4; i++) {
       x<cudaq::ctrl>(q[i], q[i + 1]);
     }
-    mz(q);
+    // Note: All qubits will be measured at the end upon performing
+    // the sampling. You may encounter a pre-flight error on IonQ
+    // backends if you include explicit measurements.
   }
 };
 

docs/sphinx/examples/python/providers/ionq.py

@@ -11,8 +11,10 @@
 qubits = kernel.qalloc(2)
 kernel.h(qubits[0])
 kernel.cx(qubits[0], qubits[1])
-kernel.mz(qubits[0])
-kernel.mz(qubits[1])
+
+# Note: All qubits will be measured at the end upon performing
+# the sampling. You may encounter a pre-flight error on IonQ
+# backends if you include explicit measurements.
 
 # Execute on IonQ and print out the results.