Link documentation to GitHub Pages root

The documentation index currently redirects to `chip8_vm`'s rustdoc,
but some overview page might be added lateron.

Author: robo9k

Cargo.toml

@@ -7,7 +7,7 @@ license = "MIT"
 keywords = ["vm", "chip-8",]
 homepage = "https://github.com/chip8-rust/chip8-vm"
 repository = "https://github.com/chip8-rust/chip8-vm.git"
-documentation = "https://chip8-rust.github.io/chip8-vm/chip8_vm/"
+documentation = "https://chip8-rust.github.io/chip8-vm/"
 version = "0.0.3"
 authors = [
     "Jake Kerr <[email protected]>",

README.md

@@ -28,7 +28,7 @@ git = "https://github.com/chip8-rust/chip8-vm"
 ```
 
 See an example integration with a UI in the [chip8_ui](https://github.com/chip8-rust/chip8-ui/blob/master/src/main.rs) crate code.
-For further information, take a look at the [`chip8_vm` rustdoc](https://chip8-rust.github.io/chip8-vm/chip8_vm).
+For further information, take a look at the [`chip8_vm` documentation](https://chip8-rust.github.io/chip8-vm/).
 
 Spec
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