Update deprecated textbook URL in phase estimation docstring (#10555)

The previous Qiskit textbook URL referenced in the phase estimation docstring is no longer reachable. This commit updates the URL to point to the current location of the relevant textbook recourse.
Qiskit · Aug 3, 2023 · f51a048 · f51a048
1 parent 290305a
commit f51a048
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/qiskit/circuit/library/phase_estimation.py b/qiskit/circuit/library/phase_estimation.py
@@ -44,7 +44,7 @@ class PhaseEstimation(QuantumCircuit):
          Cambridge University Press, New York, NY, USA.
 
     [3]: Qiskit
-        `textbook <https://qiskit.org/textbook/ch-algorithms/quantum-phase-estimation.html>`_
+        `textbook <https://learn.qiskit.org/course/ch-algorithms/quantum-phase-estimation>`_
 
     """