Description
-----------

Insert your PR description here. Thanks for contributing to pyQuil! :)

Checklist
---------

- [ ] The above description motivates these changes.
- [ ] There is a unit test that covers these changes.
- [ ] All new and existing tests pass locally and on Semaphore.
- [ ] Parameters have type hints with [PEP 484 syntax](https://www.python.org/dev/peps/pep-0484/).
- [ ] Functions and classes have useful sphinx-style docstrings.
- [ ] (New Feature) The docs have been updated accordingly.
- [ ] (Bugfix) The associated issue is referenced above using
      [auto-close keywords](https://help.github.com/en/articles/closing-issues-using-keywords).
- [ ] The changelog (`docs/source/changes.rst`) has a description of this change.

Description
-----------

Insert your PR description here. Thanks for contributing to pyQuil! :)

Checklist
---------

- [ ] The above description motivates these changes.
- [ ] There is a unit test that covers these changes.
- [ ] All new and existing tests pass locally and on Semaphore.
- [ ] Parameters have type hints with [PEP 484 syntax](https://www.python.org/dev/peps/pep-0484/).
- [ ] Functions and classes have useful sphinx-style docstrings.
- [ ] (New Feature) The docs have been updated accordingly.
- [ ] (Bugfix) The associated issue is referenced above using
      [auto-close keywords](https://help.github.com/en/articles/closing-issues-using-keywords).
- [ ] The [changelog](https://github.com/rigetti/pyquil/blob/master/CHANGELOG.md) has a
      description of this change, including the author and PR number (@username, gh-xxx).

Update PR template with new changelog instructions
Update PR template with new changelog instructions
