[python-control-developers] [python-control/python-control] 6ca56e: Update README.rst

[Sawyer F. <no...@gi...>]

  Branch: refs/heads/sawyerbfuller-patch-1
  Home:   https://github.com/python-control/python-control
  Commit: 6ca56e949a8acfc2ccc532d9445e9c829d8c3d96
      https://github.com/python-control/python-control/commit/6ca56e949a8acfc2ccc532d9445e9c829d8c3d96
  Author: Sawyer Fuller <587...@us...>
  Date:   2022-12-07 (Wed, 07 Dec 2022)

  Changed paths:
    M README.rst

  Log Message:
  -----------
  Update README.rst

In response to #792 :
* Added citation information and article link to readme
* Mention nonlinear, hinfsyn, and interconnect functionality in readme