message: README: add crates.io badge and drop the usage section, fixes
diff: -# Image [![Build Status](https://travis-ci.org/image-rs/image.svg?branch=master)](https://travis-ci.org/image-rs/image) [![Gitter](https://badges.gitter.im/image-rs/image.svg)](https://gitter.im/image-rs/image?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
  +# Image [![crates.io](https://img.shields.io/crates/v/image.svg)](https://crates.io/crates/image) [![Build Status](https://travis-ci.org/image-rs/image.svg?branch=master)](https://travis-ci.org/image-rs/image) [![Gitter](https://badges.gitter.im/image-rs/image.svg)](https://gitter.im/image-rs/image?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
  Maintainers: @nwin, @ccgn
  @@ -10,23 +10,6 @@ This crate provides basic imaging processing functions and methods for convertin
  All image processing functions provided operate on types that implement the ```GenericImage``` trait and return an ```ImageBuffer```.
  -### Usage
  -
  -Add the following to the Cargo.toml in your project:
  -
  -```toml
  -[dependencies]
  -image = "*"
  -```
  -
  -and import using ```extern crate```:
  -
  -```rust
  -extern crate image;
  -
  -// use image::
  -```
  -
  ## 1. Documentation
  https://docs.rs/image
  