opencv example in README leads to incorrect color identification with default settings

[rrtaylor]

In the README example, an image file is opened using opencv, which will open the file in BGR. However, the color_names.npz dataset that comes with the repo is stored as RGB. Therefore if you use the example verbatim, you will get incorrect color identifications. Since from_file.py uses skimage.io instead of opencv, the only corrections needed are on the README, which are:

• replacing opencv calls with skimage.io calls
• removing any mention of needing color name files stored as BGR.

[ankusharya]

Is this issue fixed?