[python-control-developers] [python-control/python-control] 319a75: Small doc updates (#364)

[Richard M. <no...@gi...>]

  Branch: refs/heads/master
  Home:   https://github.com/python-control/python-control
  Commit: 319a756eb3e0dc2e31b8ed649404c0645a414dfe
      https://github.com/python-control/python-control/commit/319a756eb3e0dc2e31b8ed649404c0645a414dfe
  Author: Richard Murray <mu...@cd...>
  Date:   2020-01-04 (Sat, 04 Jan 2020)

  Changed paths:
    M doc/iosys.rst

  Log Message:
  -----------
  Small doc updates (#364)

* fix code blocks in iosys.rst