I can't find any documentation for voice over in ios.
I can find osx docs but not ios.
can you help me with this?
The best you're going to get is the user guide for the particular product you are using. It's available as a favorite in Safari, but also available from a computer. It can be a little difficult to navigate with certain screen readers.
Also, There was at one point some part on here that said something like "getting started with your first iPhone". I think it is still there, but haven't checked recently. Check it out, and see what you find. There should be something there that meets your needs. There are oodles of podcasts for VO basics also.