Thanks for making this guide for people, and so important in this community, where misinformation could potentially be dangerous.
Just because the typo in this instance matters to markdown and might frustrate someone:
'According to [WEBMD](link to URL where you took the information], arnica is good for 'quote information here to show it's not your words''
...your closing parenthesis is a bracket on example #1.
Thanks. Im going to writ an official less ranty how to to refer people to, and would have copy and pasted the code :) .... so thanks!