Remove Lookalike demo widgets

README.md

@@ -22,23 +22,3 @@ Alternatively, you can install the add-on from PyPI:

    pip install orange3-prototypes


### OpenCV dependency

To access Face Detector and Webcam widgets, you need OpenCV library.

#### Windows

Download the required [OpenCV] package. Make sure you download the package for your version of Python and OS.

[OpenCV]: http://www.lfd.uci.edu/~gohlke/pythonlibs/#opencv

Then go to the folder containing the downloaded file and open the terminal. Run (insert the right file name after install):

    pip install <opencv_python‑3.2.0‑cp36‑cp36m‑win_amd64.whl>

#### MacOS

In the terminal, run:

    /Applications/Orange3.app/Contents/MacOS/pip install opencv-python