message: README: add git as required package
diff: @@ -20,6 +20,7 @@ locally you probably also have `cargo` installed locally.
  Cargo requires the following tools and packages to build:
  +* `git`
  * `python`
  * `curl` (on Unix)
  * OpenSSL headers (only for Unix, this is the `libssl-dev` package on ubuntu)
  