Hey there !!
.. Yes, I was really surprised ! At first this picture looked a bit like advertising so I had to look up your blog to get some more information about it, as it actually does not look like the beginning to a guide about natural medicine. I also see that you found the Natural Medicine Community already, which is really good as their members will be highly interested in your Guide. If you are on Discord you should definitely join their server too.
Regarding the Feature, it will be the best to make it as short and on the point as possible. But do it as long as necessary to get all the information into it that you think are needed. If people are interested they will click on the link anyway and will find the complete information.
As we are talking about length right now, I have also one more suggestion to you about the chapters that you are planning to write. I am already quite a while here on Hive and found that texts that are too long are generally demotivating people from going through it all. This is actually a pitty if it is a text that has some really nice message in it. So I would not write posts that are longer than 2000 words in total (about 12 minutes read) and split one chapter into two if they become too long. Your formatting looks already really nice and your are using references in the right way, so the layout is perfect and I believe that your guide has the potential to become an awesome one. But as your target group will be mostly the Natural Medicine Community you could ask in their Discord about their opinion and suggestions to your guide. I believe that they will be helping you a lot in the future ^^
Oh, and one last suggestion. I saw that you are cross-posting quite a lot. There is actually nothing bad in cross-posting, but I saw that you are doing it up to 8 times for a post. I would suggest to you to reduce to number to maybe 3 cross-posts maximum. There are actually Hiveans here that consider this as an overuse of the cross-post feature and mark you as a spammer. It would be a shame if they brand-mark you as one ^^
I hope this was a bit helpful, hehe
Best wishes,
Adalger