Fix Qiskit's link (krzjoa#47)

Author: tolgacangoz

README.md

@@ -500,7 +500,7 @@
 * [PySal](https://github.com/pysal/pysal) - Python Spatial Analysis Library.
 
 ## Quantum Computing
-* [qiskit](Qiskit/qiskit) - Qiskit is an open-source SDK for working with quantum computers at the level of circuits, algorithms, and application modules.
+* [qiskit](https://github.com/Qiskit/qiskit) - Qiskit is an open-source SDK for working with quantum computers at the level of circuits, algorithms, and application modules.
 * [cirq](https://github.com/quantumlib/Cirq) - A python framework for creating, editing, and invoking Noisy Intermediate Scale Quantum (NISQ) circuits.
 * [PennyLane](https://github.com/XanaduAI/pennylane) - Quantum machine learning, automatic differentiation, and optimization of hybrid quantum-classical computations.
 * [QML](https://github.com/qmlcode/qml) - A Python Toolkit for Quantum Machine Learning.