Merge pull request #196 from vallentin/master

Fixed typo

Author: Centril

src/rust-2018/cargo-and-crates-io/cargo-check-for-faster-checking.md

@@ -14,7 +14,7 @@ correct, all that stuff. Second, once it's satisfied that everything is in
 order, it produces the actual binary code that you end up executing.
 
 It turns out that that second step takes a lot of time. And most of the time,
-it's not neccesary. That is, when you're working on some Rust code, many
+it's not necessary. That is, when you're working on some Rust code, many
 developers will get into a workflow like this:
 
 1. Write some code.