Guide isn't very well formatted. Bunch of words just puts people off and doesn't get people interested. Even just hero or item icons can contribute to guide formatting, so yeah. You are basically using one sentence for one chapter which makes absorbing information harder for most people.

IMO, your lane match up section isn't detailed much. Just saying "shut him down" isn't going to help, people are going to ask 'how'.

Also, your thinking is quite flawed on some parts of the guide. Saying that Elise is underpowered is really an understatement. Q is a ranged targeted spell that is a sure-hit if you are in her range, and it has low mana cost so a melee like Lee Sin regardless of his kit will soon taking damage. Even with his Safeguard, Elise spamming her Q will break his sustain. To evade his Q, one must have the luck of having a bad player not sticking by her creeps, since you are a melee hero. To get some last hits, you are sure to be targeted with some of her Qs and yea.

You seem to be underestimating a lot of heroes in lane match ups, like Akali (Q-E burst is actually pretty painful). Karthus also has his Wall of Pain which will make easy Qs on you, so putting "avoid Q" won't help much.