Hello World code comment is misleading

[Eric-Arellano]

It says there are two arguments, but only one is set

documentation/docs/start/hello-world.ipynb

Lines 77 to 79 in e9a27d1

	"# Create a new circuit with two qubits (first argument) and two classical\n",
	"# bits (second argument)\n",
	"qc = QuantumCircuit(2)\n",

I'm not sure what was intended.

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Why is the preset pass manager in step 3: execute, rather than step 2: optimize?

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What does pub mean in the comment and variable name in step 3?

[Eric-Arellano]

Thanks @kaelynj! The only remaining problem is the top of this issue where it says there are two arguments.