[python-control-developers] [python-control/python-control] ae7175: Update intro.rst

[sawyerbfuller <no...@gi...>]

  Branch: refs/heads/sawyerbfuller-patch-1
  Home:   https://github.com/python-control/python-control
  Commit: ae7175b0d54e4f26ace231fca8f19792d689b36d
      https://github.com/python-control/python-control/commit/ae7175b0d54e4f26ace231fca8f19792d689b36d
  Author: sawyerbfuller <587...@us...>
  Date:   2021-04-02 (Fri, 02 Apr 2021)

  Changed paths:
    M doc/intro.rst

  Log Message:
  -----------
  Update intro.rst

added missing "slycot" to standard anaconda install instructions t