The textbook on Qiskit.org has
When the H-gate is applied to first qubit, it creates superposition and we get the state $|0+\rangle = \frac{1}{\sqrt{2}}(|00\rangle + |01\rangle)$
Shouldn't it be: $$|0+\rangle = \frac{1}{\sqrt{2}}(|00\rangle + |10\rangle)$$
as explained in some answers here: (How do I apply the Hadamard gate to one qubit in a two-qubit pure state?)