Hello there!

I see you're new to MOBAFire, thumbs up for your initiative!
However, there are things that could be improved, you could talk more about your build like "Why should I buy item X?" or "Why choose rune X instead of Y?". Also, by adding some highlights to the text body would make it easier to read, one good highlight is to add "[[" and "]]" around item/champion names, this will create an inline embed (like this Jhin), or using "[icon=X size=X]" to embed icons on the guide (like this ).

Anyway, there's a myriad of possibilities with BBCode, if you want to learn all of its functions you can refer to this wiki or this guide, in which the latter has templates of sections done with BBCode.
See ya!

PS: On your items section, you say to start with Long Sword + 3 Health Potion + Stealth Ward, but on the cheatsheet you've set Hunter's Machete + Health Potion + Stealth Ward as initial items. I'd take a look on this since most people can become confused.