nickdgardner

fixes #00000

Add Qiskit example on mitigating the energy landscape of a variational circuit

2

## Description Resolves #1334. Makes a Qiskit version of the tutorial [*Mitigating the energy landscape of a variational circuit with Mitiq*](https://mitiq.readthedocs.io/en/latest/examples/simple_landscape.html). --- ### License - [x] I license this contribution...

## Issue Description When I click on [Executors](https://mitiq.readthedocs.io/en/stable/apidoc.html#module-mitiq.executor.executor) on the [API-doc](https://mitiq.readthedocs.io/en/stable/apidoc.html) page, the visible side bar scrolling under "On this page" shows "Digital Dynamical Decoupling" highlighted instead of "Executors". The...