Merge pull request #76 from aturon/rust-1.5-amend

Stop mentioning cargo-extras, which doesn't build on stable

Author: alexcrichton

_posts/2015-12-10-Rust-1.5.md

@@ -21,14 +21,14 @@ The community is already taking advantage of `cargo install` to
 install applications like
 [rustfmt](https://github.com/rust-lang-nursery/rustfmt), the
 work-in-progress code formatting tool for Rust. Moreover, `cargo install`
-can also be used to install new subcommands for Cargo itself. Many of
-these are collected in the
-[Cargo extras](https://github.com/kbknapp/cargo-extras) package:
+can also be used to install new subcommands for Cargo itself:
 
-* `cargo check`: statically check a project, but don't build a binary.
-* `cargo edit`: add or remove dependencies for a project through the command line.
-* `cargo graph`: build dependency graphs for a project using GraphViz.
-* `cargo watch`: automatically re-run a Cargo command when the project changes.
+* `cargo-check`: statically check a project, but don't build a binary.
+* `cargo-edit`: add or remove dependencies for a project through the command line.
+* `cargo-graph`: build dependency graphs for a project using GraphViz.
+* `cargo-watch`: automatically re-run a Cargo command when the project changes.
+
+(You can find more with a [crates.io search](https://crates.io/search?q=subcommand).)
 
 In addition to these tooling changes, Rust 1.5 sees a large number of
 library API stabilizations, especially around the interaction of paths