Add Open in MATLAB Online badge

[yanndebray]

Can be created from this page;
https://www.mathworks.com/products/matlab-online/git.html

[yanndebray]

Would require to add a setup file like this

% % setup.m

% create pip folder if it doesn't exist
if ~exist('pip', 'dir')
    mkdir('pip');
    
    % retrieve pip files
    files = ["getwheel","setuppip","pipinstall","piplist","pipcmd","pipshow","pipuninstall"];
    BASE_URL = "https://raw.githubusercontent.com/yanndebray/matlab-with-python-book/main/code/";
    for i = 1:length(files)
    url = BASE_URL+files{i}+".m";
    websave("pip/"+files{i}+".m",url);
    end
end

addpath("pip/")

% install opencv package
pipinstall("opencv-python")