You can always contact people on the steemstem discord for guidance on the use of markdown. Here's the link to the discord: https://discord.gg/4QMA6M

You also need help on sourcing copyright free images as some of the images in the article are not free. Also, some of the work was found copied from another website. Steemstem will not support such an endeavour. Feel free to join us on discord to know the do's and don'ts. Thank you