You should really update your coding and make it look a little nicer. You have a pretty decent build, but honestly, Youmuu's Ghostblade isn't a good item for her because she doesn't utilize all of its stats. That's what you need to look for when buying items on champions. She also NEEDS Mercury's Treads because CC shuts her down hard. Ionian Boots of Lucidity are nice but they also leave you at a disadvantage. I personally play the tankier side of Riven as a tanky DPS, but this build works fine as well. You just need to make sure that you don't get focused in teamfights or you don't last long at all. You should also go more indepth, because this is barely a guide. It's just a build outline.

I don't really recommend flat AD runes because the bonus falls off quickly after earlygame. Armor pen runes stay throughout the entire game. You should also take flat armor seals over cdr seals. Riven needs a bit of survivability, but you can play her as a glass cannon if you'd like.

Protip: Make your guide require a comment to vote so that you don't get random downvotes.

You picked up the code pretty quickly, nice job

just revised my guide with plenty of code and just testdrived it however much less the cdr is id doesent make much diffrence however loss in AD makes Valor sheild for less so in the end its your choice armor and health over all or a armor/MR health sheild thingy

Test run on coding is a success. Thank you very much for your post

Thank you U have been trying to find that for a while now

"That Trev person" thank you for your (in depth) feedback Randuins Omen is a very nice item for riven and will consider adding that to my guide. Thank you for the link for that coding, like U said in the first part of my guide its my first one ever and i was lacking in a lot of area, If U can get to 60% in rating U will work on putting that lane/teamfight explenation into this. Your comment has been the most helpful so far and I will be +rep'ing you for that :)

This would be how to add the ability sequence I used if you were so inclined. Just [] it.
abilities=qwewwrweweereqqrqq champion="riven"
Also here's the masteries chart you want.
masteries=http://www.mobafire.com/league-of-legends/mastery-tree-planner#&tree1=1-3-0-0-4-4-0-4-1-0-0-0-0-0-3-0-1&tree2=0-2-2-0-4-0-0-1&tree3=0-0-0-0-0-0-0-0-0-0-0-0-0-0-0

A couple issues I have with your guide:

1. Youmuu's Ghostblade is a bad item on Riven. Cooldown reduction is nice on her, but she doesn't scale with the attack speed or critical strike chance at all, meaning you're wasting a good chunk of money. If you'd like to can get a The Brutalizer, but sell it in the late game for something more effective damage-wise, or just skip it entirely. Consider a Randuin's Omen, which is a common item for Riven's late game since it provides some health, armor, cooldown reduction, and a debuffing passive for their powerful AD carry.

2. Your guide uses no coding. Try these two basic ones, and then check out some of the guides on the site that teach you more advanced codes. Jhoijhoi's is a particular in-depth one, and can be found here.

3. Your guide isn't really a guide, and here's why. It contains only the items, skilling, masteries, etc that you use when you play Riven. There are no explanations as to how to lane as Riven, how to teamfight to Riven, or for all intents and purposes, How to play Riven. This information is necessary in order for people to succeed using your build.

Yea I didnt take into account the max rank limit before having to upgrade another ability ill fix that thanks :)

Your skill order is impossible. You can`t max your w at lvl 8 while taking points in both q and e early. What would work is . Otherwise a good build even if you need a lot of work on the coding.

thanks for the feedback. yea somtimes I somtimes wonder why i get youmuus but the cdr rly helps in spaming my e so that i dont really worry about building health too much but a frozen mallet in the end may come in handy!

good effort! I dont think [yomumu ghostblade] is a good item for her and last whisper is not compulsory, she needs to tank in some situation and needs to be tank, therefore warmog+atmas or frozen mallet may be a better.

btw q is her main damage if combo and w is just a stun so Max q first is better than w , her cd is not that long so cd boots is not so good for her,mr boots is better because she needs time to damage/escape so tenancy is important to her, cd boots is available if enemy team does not have much cc and u play well