Initialize a jsPsych experiment in the experiments folder of a vertical project
init_jspsych()
This function does the following:
creates the experiments folder
Downloads the most recent `jspsych`` library from https://github.com/jspsych/jsPsych/releases
Adds a minimal jspsych`` example experiment to experiments/experiment-1/`
See the jspsych documentation for more information about using jspsych to build behavioral experiments for the web.