Update contribution guidelines to use --index
Introduced in
@@ -428,13 +428,12 @@ live crates.io, you won't be able to publish that crate locally.
In your crate directory, run:
```
-cargo publish --host file:///path/to/your/crates.io/checkout/tmp/index-co
+cargo publish --index file:///path/to/your/crates.io/checkout/tmp/index-co
```
where `file:///path/to/your/crates.io/checkout` is the directory that you have
crates.io's code in, and `tmp/index-co` is the directory with the git index
-that `./script/init-local-index.sh` set up. [Yes, `host` dosen't really make
-sense as a name for this flag](https://github.com/rust-lang/cargo/issues/3797).
+that `./script/init-local-index.sh` set up.
Note that when you're running crates.io in development mode without the S3
variables set (which is what we've done in these setup steps), the crate files
