I only read the first chapter fully then stopped.

Skimming through parts of the rest of the guide, I sense a troll in parts of this which makes me not take this seriously one bit.

Then after looking into some things, it actually seems like this is legit... and that's scary on so many levels.

-1

I really don't have to say anything, just look above.

typo -1

Bad guide, and a stupid attitude.

Calling everyone a noob makes you deserve a downvote, noob.

OK, you're pro and all of your readers are noobs.
So why don't you show us your Elo?

You can't just write a guide in one day when you have nothing to do.
In your texts, you haven't used any coding.
No colors, no links, nothing.

So let's go through the chapters one by one:

Introduction

You're basically insulting your readers and saying that your guide is only useful to own noobs.
What are you saying about yourself?
That your Elo is extremely low. I don't know if that's the right way to start it off.
Maybe talk about your Volibear experience?

Pros and Cons

Really no cons?
What about "not a single ranged spell and gap closer"?
I know you love your champion, but every champion has cons.
Volibear is kited easily and he doesn't have a chance to fight from range.
He needs to be positioned well in order to pull off a good gank since he has to get into melee range by himself.

Runes

What the ... ?
Do you realize that you didn't say anything in this section?

Items

OK, nice, you go for Shurelya's Battlesong.
And what about the other 10+ items you listed? Why would you talk about them?
As I said, you can't write a guide in 20 minutes.

Jungle route

You have never mentioned How to gank?.
What situations are good for ganking?
Where do you have to be?
How do you get to your enemies without being spotted?
What do you do if your enemies have Sight Wards?

I'd say that's the most important question for a jungle guide.
Ganking is not "walking to a lane and getting a kill".

Early game

Said nothing, useless chapter.

Mid game

So I buy wards and win the game as a jungler in the mid game.
What about Dragon?
What about jungle invasions?
Ah right, your readers are just low Elo noobs who don't even have to know about this.

Late game

Do penta. Nice.
Oh, wait ... how?
Flip them.
Ok, wait, which one?
Useless chapter, said nothing.

How to get kills?

You explained a bit of The Relentless Storm, nice.
So now your readers are gonna tower dive people with Ignite because they know that their enemies are noobs and can't use it.

Conclusion

What did we learn in this guide?
A jungler has to jungle and gank.
The Relentless Storm gives incredible health regeneration.
Volibear can flip people.

Go write a real guide.