Add additional education content

Add additional toolkits and guides. If you have an idea for a guide that you'd like to create, it's a good idea to chat about it first either in the forum on the website or in the contributor slack channel. If you have an area of interest or expertise that you think other educators could benefit from create a toolkit or guide to go up on the "getting started" page. Note: expect a couple rounds of collaborative feedback if you are interested in taking this on.