* feat(learn): migrate mongodb-mongoose instructions to learn * remove extraneous quotation mark * update with boilerplate change * grammar changes on instructions Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com> Co-authored-by: Randell Dawson <5313213+RandellDawson@users.noreply.github.com>