Updated docs on "Choose whether you want keyboard choices/responses to be case-sensitive", where the mentioned "case_sensitive" parameter must be "case_sensitive_responses" instead, as it is otherwise correctly implemented and mentioned in other places in the documentation (e.g. "jspsych-pluginAPI.md" - starting at line 112 and "jspsych-core.md" at line 368). The "case_sensitive" variable is used only internally (e.g. "jspsych.js" - lines 2273 and 2411), but not exposed to the "jsPsych.init" method when creating an experiment. Tested with the latest release (6.3.1) with the "jspsych-html-keyboard-response" plugin and I can verify that by following the old documentation it doesn't work (for obvious reasons), but following the one I propose here it does work, as initially intended by the developers. Thanks!
