Add a tutorial that focuses on the transpilation steps

[ElePT]

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[eggerdj]

The NB looks very good. A few suggestions:

• Add a concluding text to point out the key things we learnt.
• Explicitly mention that this is transpiled to a line of qubits. Here, you can point out that a line is generally very good for QAOA and that more connectivity, e.g., 2D grid does not help (this point is discussed in Weidenfeller et al.)

[ElePT]

Documenting some external feedback and ideas I plan to implement:

• check the quality of the layout/routing with a noisy simulation + classical reference
• add an experiment customizing the default transpiler passes instead of replacing them with manually constructed passes