No, it doesn't create multiple new guides. Pressing the 'Publish' button updates the guide for the reader as well. When pressing the 'Save' button changes and adaptations are only displayed for you, the guide's author.

Thanks for the help! I think i've fixed the cheat sheet /table of contents. I'll look up the columns later :) Also, when i want to change my guide (add chapter/change text, etc.) after i save and hit "Publish" does the updated guide replace the old one? I'm kinda scared that i've been creating multiple different guides XD I know it sounds stupid but i'm new here so i'm still figuring all of this out.

In the cheat sheet it says Greater Seal of Percent Health yet you actually want to recommend Greater Seal of Scaling Health according to your notes.

Having a chapter including information about the table of contents isn't necessary as the website already generates one automatically (just take a look at your guide again and you'll probably notice what I'm talking about).

[[Kog'Maw]] is another BBCode option you can make use of. It looks like this: Kog'Maw, Rylai's Crystal Scepter, Flash, ...

I recommend you to read this guide (yet again) and carefully read the part about columns.

Feel free to ask questions!